Can a car stall with a bad throttle position sensor?

The engine can stall for no reason and without any warning. This happens when the TPS gives incorrect information to the ECM. The engine can stall at high speed, at low speed, or even at idle. A faulty throttle position sensor will not let your car accelerate normally. Though this doesn’t happen all the time.

Why is my GMC Sierra 1500 stalling and dying?

There is no code given. Have changed the injectors, timing, fuel tank, fuel pump, fuel pump, map sensor, cooling temp sensor on front of block, rebuilt the tbi, air idea valve. None of this hasite helped. The truck starts and dies. Have to give a little gas to keep running. While driving have to 2 foot it so it won’t die.

Why does my GMC Terrain keep stalling out?

Remember, a vehicle needs air, fuel, and spark to run. It needs them in the right quantities and intervals, or it won’t run right. Fuel issues are one of the most common reasons that a vehicle would stall out, that includes your GMC Terrain.

What causes a Chevy Impala engine to stall?

Bad gas- can cause an engine to stall out. Water in the gas tank can also cause gas to not fire properly. If there were no other symptoms and suddenly you find that the vehicle is running very rough, bad gas could certainly be the problem.

Why does my car stall at low rpm?

The will likely force your computer to stall the engine and only allow it to run at low RPMs, which means the car will only move at slow speeds. This is a safety feature enforced by the computer so that your engine doesn’t get too damaged.

Can a failing TPS cause a car to stall?

It can be difficult to tell the difference between a failing TPS and a malfunctioning or clogged idle air control (IAC) valve, so electrical testing and cleaning of the IAC is recommended. As mentioned, a failing TPS can result in random engine stalling at idle, but this can also happen under driving conditions.

What causes a Chevy Vortec distributor to not turn?

The cap is prone to warping from the heat, which results in the cap rubbing against the distributor rotor button. This causes the rotor bushing to wear out and the distributor begins to no longer be able to turn. The simplest option here to fix this problem is upgrading to a distributor that has an aluminum housing on it.

When does the Check Engine light come on?

The Check Engine Light usually illuminates when the computer detects a problem with any of its sensors or circuits. There are cases, however, where the ECM illuminates a Check Engine Light mistakenly, or when there is no issue present.

How long does a Chevy 4.3L Vortec engine last?

3 vortec is a very strong and reliable motor, proven by it being the longest lasting production vortec engine. Generally, these engines are extremely capable of lasting up to 300,000 miles.

Why is my Trans bad on my 4L60E?

Trans seems noisy when moving in 1st and Reverse, noise goes away instantly if you shift to N or the transmission goes into 3rd gear: Reaction planetary is worn out due to high miles or insufficient lubrication. Not a critical failure, but not a good sign either.

Can a faulty manifold sensor cause engine stall?

A faulty manifold pressure sensor has symptoms that closely resemble; a vehicle with injector problems or low compression problems. If the (MAP) sensor is not reading accurately; the (PCM) may add too much fuel or not enough. This again will cause engine stalling.

Where is the throttle position sensor on a Ford Ranger?

Your Ford Ranger uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.

What are the symptoms of a bad transmission speed sensor?

Symptoms of a Bad or Failing Transmission Speed Sensor. 1 1. Harsh or Improper Shifting. Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears 2 2. Cruise Control Does Not Work. 3 3. Check Engine Light Comes On.

How does the transmission range sensor control the transmission?

A malfunctioning AC switch can result in problems that feel as though they are transmission related. The Transmission Range Sensor tells the PCM the position of the transmission shifter. The PCM uses this information to control which gears of the transmission to enable or disable.

Can a bad MAP sensor cause engine failure?

MAP sensor on footwell inside engine compartment. A bad manifold absolute pressure (MAP) sensor can upset fuel delivery and ignition timing. Depending on your vehicle model, your engine might experience one or more of these performance problems: However, these symptoms are not exclusively symptoms of a failed MAP sensor.

Where is the throttle position sensor on a Chevy Cobalt?

Your Chevy Cobalt uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.

What happens when the throttle gets stuck in an open position?

When the throttle gets stuck in an open position than your vehicle will receive too much air and cause it to have a high or fluctuating idle. What are signs of a bad Throttle Position Sensor? Acceleration issues: A bad TPS may cause all sorts of power issues. Your engine may start up but it will have little to no power and it causes it to shut off.

How can I Reset my throttle position sensor?

Reprogramming or resetting your sensor can sometimes solve these issues. This step can also be necessary when you install a new sensor. The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.

Why is my throttle position sensor not working?

The reason this happens is that the ECM doesn’t get correct information from the TPS as to how much to throttle the car. Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS.

Where is the throttle position sensor on a Chevy Tahoe?

Your Chevy Tahoe uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.

What causes a Chevy Tahoe to stall at a stoplight?

These were just some of the most common ones. A dirty throttle body can lead to stalling in your Tahoe. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem.

Where is the throttle position sensor on a Cadillac Escalade?

Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal. This sensor is responsible for telling the engine how much air and fuel to allow in. It is very rare these days to be actually directly controlling the amount of fuel and air entering the engine directly.

What happens if the fuel pressure regulator is not working?

If the fuel pressure regulator is not maintaining exact fuel pressure while the engine is running, it can cause the engine to run rich or lean, and in the event it goes too far in either direction, the engine will stall out due to an inability to properly burn the air/fuel mixture.

Where is the throttle control valve on a car?

The valve is a major management component of the engine which will either decrease or increase the number of revolutions per minute, depending on what the current operating conditions call for. The valve is connected to the throttle body next to the intake manifold. The engine control unit is what manages the function of the valve.

What does it mean when your car throttles up while driving?

In these cases, the TPS isn’t providing the right input, the onboard computer cannot direct the engine to work properly. When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator.

Can a bad throttle position sensor cause stalling?

Similarly, if your engine struggles to idle efficiently, it could also be a result of a damaged throttle position sensor. Stalling, surging, or hesitating while idling all can be caused by this unassuming sensor. The best way to determine if these issues are caused by your throttle position sensor is to go to the source.

How to install a new throttle position sensor?

Install your new sensor by working backward through the removal steps. Start by installing the sensor using the mounting screws. Next, connect your sensor to your vehicle’s electrical system using a convenient electrical connector. You should be able to easily push it together and hear a distinct click. Check to ensure a firm connection.

Can a bad throttle position sensor cause a car to shake?

A bad throttle position sensor can cause other issues on your car if left unattended. That’s right! If the sensor is faulty, it will cause your car to shake heavily. Eventually, if this issue is left unattended it will put major stress on your motor and transmission mounts to the point where they will give out and will need replacement.

Why does my GMC TBI keep stalling out?

Sometimes it will try to run for 7 or eight seconds, rpms going up and down till it stalls out. Any chanced it could be in the distributor someway? The following are the reading I got on my last test.

What causes a 1994 Chevy C / K 1500 to bog down?

– CarGurus 1994 Chevy C1500 5.7 bogs/backfires when I give it gas. My truck bogs down (and tries to die) when I give it gas to accelerate off of a stop. There is often a backfire or two when this happens. Pumping the gas does not help. I basically have to crawl through any intersection until it picks up a bit of speed from idle. The truck

Is the GM 454 a throttle body injection?

I’mpretty sure Tim’s is a throttle body injection like mine. These look like a carb but are far from it. For that period it was GM’s answer to a carb and I think they worked better than a carb, but they came with their own problems. I’m having problems with my engine which is a gen 5 454 tbi 220 model made in 1992.

What was the throttle body on a 1994 Chevy CK?

Chevy CK Pickup 7.4L 1994, GM Original Equipment™ Throttle Body Idle Air Control Motor by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part.

What causes a carburetor to stall when accelerating?

If the engine either hesitates or stalls upon acceleration due to the carburetor, the carburetor’s accelerator pump nozzle may need to be cleaned or the secondary throttle plates may not be closing all of the way. Occasionally, the carburetor’s idle jet will become clogged with dirt, which will cause the hesitation or stall.

What makes a GM 454 backfires a carb?

If a 4 barrel it might be the accelerator pump. I’mpretty sure Tim’s is a throttle body injection like mine. These look like a carb but are far from it. For that period it was GM’s answer to a carb and I think they worked better than a carb, but they came with their own problems.

How much does it cost to replace a throttle position sensor?

If you need to have your throttle position sensor replaced, the cost will depend on the type of car you have. But the average cost of this replacement job isn’t that expensive. The parts will cost you between $75 and $130 on average. The labor costs will be anywhere between $60 and $90, depending on the hourly rate of the mechanics.

How much does it cost to fix a bad throttle?

If your vehicle has the throttle out in the open in a visible and accessible area then the job shouldn’t be too hard and it could cost you under $500 fix with parts and labor. Now some cars can get complicated as the throttle is inaccessible at first and will require tons of disassembling like taking off the intake manifold and air filter box.

How is the throttle connected to the accelerator?

In the old days, there used to be a cable that was connected from the throttle to the accelerator. But now in the technological age, the car’s computer controls when the throttle opens and closes by the feedback it gets about the acceleration of the vehicle.

When is idle / hesitation problem with a twist?

The problem is much worse when cold (meaning first start up/drive of the day) and is not as pronounced when the engine is completely warmed up, but it is still there. The odd twist of this idle/hesitation problem (and probably the most important part of this issue) is that it clears up completely when I shift to neutral.

Why does my car stall at high speed?

The engine can stall at high speed, at low speed, or even at idle. A faulty throttle position sensor will not let your car accelerate normally. Though this doesn’t happen all the time. You may experience slow acceleration, acceleration surge at both high and low speeds, hesitation or delay in acceleration, and other related symptoms.

Why does my Subaru Outback keep stalling?

Oxygen Sensor – The oxygen sensors measure the exhaust gasses after they exit the combustion chamber. The ECU uses this data to make adjustments to the air/fuel mixture. If one of them has gone bad, then it could lead to stalling. There are many other sensors that can cause your Outback to stall.

What is the diagnostic code for engine stall?

Diagnostic trouble codes P0120, P0121, P0122, P0123, and P0124 are what will commonly appear. The engine can stall for no reason and without any warning. This happens when the TPS gives incorrect information to the ECM. The engine can stall at high speed, at low speed, or even at idle.

What are the problems with the throttle system?

That’s why you must always check for any of these common problems: 1 The throttle body is filled with rust 2 Air filter or vacuum are leaking 3 A sensor or electrical connection is loose 4 There’s severe physical damage on the throttle system

Is the throttle body part of the engine?

Here, you need to understand that the throttle body is an essential part of most engines nowadays. If your truck has a 5.7L Hemi, it becomes even more critical as this engine requires maximum control. The ETC’s whole job is to collect information from the accelerator (sensor in the pedal) and adjust the throttle accordingly.

Is there a way to reset the throttle body?

This method is almost foolproof as long as all ECU control parameters are within their normal ranges. Resetting The Throttle Body Calibration (this step is conditional) A Rough Idle or a SES can sometimes be caused by a change in the throttle body position sensor calibration.

What should I do if my throttle control is not working?

1. Turn ignition on, but not the engine. 2. Wait until all the warning chimes have sounded. 3. Slowly depress gas pedal to 100% fully depressed and hold for a few seconds. 4. Slowly let off the gas pedal until returned to 0% position. 5. Turn off ignition. 6. Start engine.

Is there a problem with the Hemi throttle?

Any of the current crop of Hemi throttle bodies that does not follow precisely the commanded throttle position…will immediately set a diagnostic trouble code (DTC). similar situation but getting no results from suggestions. update to above.

Is there a throttle control problem on a Durango?

Also saw an 04 Durango show intermittent misfire issues. Changed plug wires, coils, cam and crank sensors, checked the wiring harness, the plugs, compression, alternator, battery…Never did know what the end result of that was, but I can ask tomorrow. Three green…

Is there a throttle control problem in a 2006 SXT 3.5?

About a week after I bought my 2006 SXT 3.5 I left the car outside over night for the first time. It was a really cold night. In the morning I started the car up and the lighting bolt red light was flashing (no check engine light). A couple minuets later the car was not responding to to the throttle pedal.

Is the Trans fluid in my Dodge Ram leaking?

No leaks or trans fluid droppings anywhere on the floor. I did start it up this morning and took it around the block and it seemed ok in “Drive” but parked it and used my work vehicle. I’ll double check the fluid levels later today when I get home.

Is there a transmission issue in my Dodge Ram?

I have roughly 187K miles on it and had the tranny fluids R&R with both filters about 28K miles ago and it had been working fine, up until yesterday. No leaks or trans fluid droppings anywhere on the floor. I did start it up this morning and took it around the block and it seemed ok in “Drive” but parked it and used my work vehicle.

Is there a problem with the throttle on a Dodge Ram?

I noticed a red lightening bolt on dash lit up. Looked it up , and manual says ETC (electronic throttle control error) Shortly after truck died. Restarted would only roll 3-5 mph throttle responded to nothing. Turned off and back on truck ran fine still have red light . Purchased new throttle position sensor from dealership still not corrected.

Why is my Zetec engine stalling and stalling?

Hiding underneath your coil is the most vulnerable part of the Zetec and few seem to know its there. It is a 5cm rubber T-piece that connects the engine block to the EGR valve and the Pulse air system. Due to the movement of these pieces it often splits and lets out vacuum, resulting in a bad idle and or stalling.

Why does my Ford Zetec stutter when idling?

They show as a slight stutter when idling or a misfire at high load. Best diagnostic is to swap for a known good set. The Zetec produces a very powerful (and reliable) wasted spark from the capacitor discharge coil. But due to the large plug gap Ford specifies, the current must be very strong to create a good spark at the plugs.

What are the symptoms of a bad throttle / accelerator pedal?

Symptoms of a Bad or Failing Throttle/Accelerator Pedal Position Sensor. $79.99 – $89.99. Average rating from 4,829 customers who received a Check Engine Light is on Inspection. The days of having to constantly adjust the throttle cable due to a loose nut on the carburetor are long gone.

Can a loose nut on a carburetor cause bad throttle?

The days of having to constantly adjust the throttle cable due to a loose nut on the carburetor are long gone. Today’s modern cars, trucks, and SUVs are all equipped with an electronic throttle control system that contains an accelerator pedal position (APP) sensor.

How does the throttle body work on a Ford Fiesta?

Your Fiesta’s throttle body controls the amount of air that enters the engine. You control the throttle body position with the gas pedal. So, the symptoms of a bad throttle body will all affect how the vehicle feels responding to your throttle input.

What are the symptoms of a bad throttle body?

If your Ford Fiesta has a bad throttle body, it can cause it to run terribly. Common symptoms of a bad throttle body include, dirt and grime, the check engine light, and an erratic idle. Your Fiesta’s throttle body controls the amount of air that enters the engine. You control the throttle body position with the gas pedal.

What’s the ABS warning light on my Fiesta?

Fault codes c1225 c 1236 c1233 in abs ( no reading on parameter test) … read more Vocational, Technical or Tra… My son’s 07 plate Fiesta, has been showing the ABs warning light. He has been quoted £650.00 to replace it.

What’s the fault code on my Ford Fiesta?

Why does my Ford E350 refuse to start?

When it refuses to start, there is spark and fuel pressure is 35 psi. So it is not the fuel pump or the pressure regulator or the TFI. It seems like the injectors refuse to release any fuel into the cylinders.

What happens when the throttle body goes bad?

Nowadays there is an electric system that’s far more efficient than the old ways but it can still have issues. When a TPS goes bad, then the car’s throttle body won’t function properly. It could either stay shut or it won’t close properly which is a severe issue. If it stays shut then your engine is not going receive air and it won’t start.

What causes a car to stall at idle?

There are many sensors that can fail and cause this to occur, but the most common problems result from the parts that are designed to keep the engine running at idle. These parts include the throttle body, idle control valve, and vacuum hose. It is important that your car be well-maintained according to the manufacturer’s service schedule.

When is a bad throttle position sensor a warning sign?

Engine won’t idle smoothly, idles too slowly, or stalls If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don’t want to wait to get this checked out!

What does it mean when your car stalls at a stop sign?

It can become unnerving to drive if your car stalls randomly when coming to a stop, whether it is at an intersection or a stop sign. Your car may stall, then there you are trying to get the car started again, hoping it will get you home.

Can a bad check engine light be a bad TPS?

The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.

What are the signs of a failing TPS?

2. Engine won’t idle smoothly, idles too slowly, or stalls. If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS.

Can a bad TPS cause an engine to shut off?

Acceleration issues: A bad TPS may cause all sorts of power issues. Your engine may start up but it will have little to no power and it causes it to shut off. Unstable Engine Idle: Faulty position sensors can cause sporadic idle conditions due to fluctuating airflow.

What is the OBD code on a Mustang?

Beginning in 1996, the Mustang started using OBD-II across all of the engine offerings. OBD, short for onboard diagnostics, is a way for the vehicle to speak to the owner/dealer on a particular issue it may be having. Using the example above with the off-road mid-pipe, let’s say your Mustang trips the CEL code P0420.

How can you tell if your throttle position sensor is bad?

The most common symptom is your check engine light. This indicator is a vague symptom, as it could also point to a variety of issues, but you can expect to see it if there’s any issue with your throttle position sensor. Next, any unusual changes in your acceleration could be linked to this sensor.

Where to find the DTC code on a Mustang?

Search For Your DTC Code Diagnostic Trouble Code (DTC) Code Description P0001 Fuel Volume Regulator Control Circuit/Op P0002 Fuel Volume Regulator Control Circuit .. P0003 Fuel Volume Regulator Control Circuit Lo P0004 Fuel Volume Regulator Control Circuit Hi

Can a poor fuel pressure regulator cause a Ford to stall?

A poor fuel pressure regulator can also cause your Ford to stall while idling or driving. While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

What causes the Check Engine light to turn off at idle?

At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling.

What causes a car to stall while idling?

STALLING DUE TO LOW FUEL PRESSURE If the engine stalls while idling or driving, the engine may be running out of fuel or not receiving enough fuel pressure to keep it running. The most likely cause of this kind of stalling would be a fuel pump that is not spinning fast enough or is intermittently cutting out.

Why does the engine stall when I put the car in reverse?

If the engine stalls, it may be caused by a faulty idle control valve, bad O2 sensors, or clogged fuel injectors. In regards to the “pan”, we’re not sure what you are referring, so it may be a good idea to contact one of our local professional mechanics to complete a battery inspection to determine what’s going on with your 2010 Ford Focus.

Can a bad idle control valve cause stalling?

This is controlled by the engine’s computer. Sometimes parts go bad, which results in your car idling strangely or stalling. Check to see if your idle control valve is functioning properly before attempting to replace it. Look for a high engine idle. A common symptom of a faulty idle control valve can be a high idle.

Why does my Ford Taurus not start up?

If you have an intermittent problem where your Ford Taurus won’t start – no crank, no noise, absolutely nothing – then you may have the same problem I had. My car came with a extra security system where you have to push a button on a remote before starting the car. This was installed at the dealership but it’s a third party component.

When did my Ford Taurus have the transmission replaced?

I have a 1994 Ford Taurus that had the engine replaced as well as the transmission about 6 months after we purchased it 3 years ago. About a year ago, my then-husband was driving the car and said the water pump went out (the bearings). He parked it at a friend’s house immediately and it sat for a few months; then we towed it home.

What causes an engine to stall at idle?

If the ISC valve is gummed up with fuel varnish or dirt, it may stick, preventing the engine from maintaining the proper idle speed when the throttle closes. A faulty idle speed control circuit may also allow the engine to stall when idling if it fails to compensate for idle loads placed on the engine by the charging system or A/C compressor.

How much horsepower does a 1993 Foxbody Mustang have?

1979-1993 5.0L V8 Foxbody Mustang Power Ratings Year Engine (cu/L) Horsepower @ Torque @ (ft-lb) 1991 302/5.0L HO 220 @ 4200 300 @ 3200 1992 302/5.0L HO 220 @ 4200 300 @ 3200 1993 302/5.0L HO 205 @ 4200 275 @ 3000 1993 Cobra 302/5.0L GT40 235 @ 4600 280 @ 4000

Is your Mustang stumbling, dieing at idle or idling rough?

If your car does not have cats in the exhaust it will seem like the IAC is bad but may not be. Oh check if each COIL has sparks. You can do that just by taking it of the plug one at a time turn the car on and you will here that spark. Don’t tuch that spark it hurts lol… :bigthumbsup hey i have a ’98 GT convertible and it’s idleing too high.

What kind of transmission does a Ford Mustang have?

Bigger is not much use. Throughout the production run of the Foxbody Mustangs (1979-1993), Ford implemented 4 different transmissions – 3 automatics and 1 manual. Use the links below to navigate the specifications on the SROD, AOD and C4/C5 automatic transmissions as well as the Borg-Warner (now Tremec) T5.

Why does my Chevy truck not start up?

The P1516 code may be a clue. P1516 is a problem with the Throttle Actuator Control (TAC) Module which can (according to some of my reading) cause the PCM to go to reduce power (stop firing the injectors) from lack of signal. It seems this can also be caused by faulty APP (Accelerator Pedal Position) sensor.

Why did my Silverado engine die after 9 months?

Turns out that the wiring harness to the ECM had fallen down onto the motor, melted the loom, and shorted the ECM out occassionally. It only took 9 months to figure this out, but it did the trick. It was extremely frustrating as it would run like a champ one day, and die the next.

When to replace throttle body in Chevy Silverado?

Please try again later. On this episode of Fear No Fix, Jim and Chris replace the Throttle Body in a 5.3L Chevrolet Silverado (model years 1999-2006*). https://www.bluedriver.com/sites/defa… Don’t forget, often times cleaning a throttle body can solve your issue, so you may want to try that before replacing the part!

Is there a problem with my Chevy Silverado?

Chevy: silverado..the car start but wont stay running what could be… have a chevy 99 silverado… have a chevy 99 silverado 5.3 engine and the problem is that the car start but wont stay running what could be wrong? Submitted: 10 years ago.

What should I do if my Silverado engine dies?

Update as of today: 1) the truck hasn’t started and kept running since last week. It only starts right up, then dies immediately. 2) I got a fuel pressure tester and the pressure is at 53 with key on, and maintains pressure when it starts (then dies).

What kind of engine does a 2003 Silverado have?

Here’s the kicker…..I put the new one in and the truck started right up and we thought it was fixed, my son drove the truck and it ran fine, but when he returned home, it wouldn’t keep running after he would try to start it again, no matter how many times we tried.

Why does my Silverado go slower past half Trottle?

The truck starts, idles, and revs normally and when accellarating slowly everything works just fine, but once you get past half throttle it falls on its face and acts like it has a clogged fuel filter or bad fuel pump. It actually goes slower than below half throttle. The bogging gets consistently worse the more throttle you give it.

Why does my truck rev up at light throttle?

If your truck over-responds to the throttle and revs up very rapidly at only light throttle application, or revs up on its own, internal injection pump wear is almost certainly the cause.

What are the symptoms of a bad throttle position sensor?

This is another failure mode of the TPS, which indicates that it is falsely limiting the power being requested with your accelerator pedal foot. You may find that your car will accelerate, but not beyond a speed of 20 – 30 MPH. This symptom often goes hand in hand with loss-of-power behavior.

Can a car stall with a bad throttle position sensor?