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What kind of engine does a Caterpillar 3126 have?

What kind of engine does a Caterpillar 3126 have?

Caterpillar 3126B and 3126E. – YouTube The Cat 3126 Engine. Know Your Engine. Caterpillar 3126B and 3126E. If playback doesn’t begin shortly, try restarting your device.

What to do if your 3126 won’t start?

Not at all too techie! After trying everything I could think of or find elsewhere on the web, disconnecting the IAP allowed the 3126 to start immediately, but run just a little ragged. Reconnecting the IAP afterwards, while running, the engine smoothed out and continued to operate normally.

Where is the IAP on a 3126 engine?

Location: The IAP is located on the front left side of the engine and screws into the head just to the right of the HEUI pump. Has a 10″ wire harness with a triangular 3 pin connector. Google “3126 sensor locations” for some clear pictures if in doubt.

Caterpillar 3126B and 3126E. – YouTube The Cat 3126 Engine. Know Your Engine. Caterpillar 3126B and 3126E. If playback doesn’t begin shortly, try restarting your device.

Where is the PWM located on a Caterpillar 3126 HEUI engine?

Instead of a direct rod/cable from the accelerator pedal to the fuel pump, the ECM receives a Pulse Width Modulation (PWM) from a throttle position sensor which incor- porates a potentiometer. The sensor is located on the back side of the accelerator pedal.

What kind of pressure sensor does a caterpillar use?

Only 1 left! Caterpillar OEM Sensor 205-9873. Cat 2059873 (419-7227 New #) Sensor Gp Caterpillar New OEM Sensor 375-6126. Cat Original Part 3756126. CAT 306-6834 Caterpillar GP Pressure Sensor NEW!!

Is the caterpillar 3126cat used for Fire Rescue?

Someone correct me if im wrong but i read where the 3126Cat @ 330 h.p. is mainly for fire/rescue & ambulance use only . Thanks guys! That is the information I was looking for.

Boost Intake Exh Exh Boost Intake Exh Exh Engine Engine BSFC Fuel Press Air Manif Gas Engine Engine BSFC Fuel Press Air Manif Gas Speed Power g/ Rate kPa Flow Temp Flow Speed Power lb/ Rate in.Hg. Flow Temp Flow rpm bkW bkW-h L/h Gauge m3 /min oC m3 /min rpm bhp bhp-h gph Gauge cfm oF cfm

Someone correct me if im wrong but i read where the 3126Cat @ 330 h.p. is mainly for fire/rescue & ambulance use only . Thanks guys! That is the information I was looking for.

How big is a 3126B diesel truck engine?

3126B 175-330 hp 420-860 lb-ft @ 1440 rpm Peak Torque 42.5 in (1078 mm) 31.4 in (798 mm) 34.0 in (862 mm) Shown with Optional Equipment From the library of Barrington Diesel Club

Is the cat 3126 engine a good engine?

That system is very similar to what’s on the 7.3L Powerstroke. They are both pretty reliable and make good power (up to 330 h.p.).

What kind of injection does a cat 3126 use?

It is an awesome running truck, he changes his own fluids and has never had any down time with it. The 3126 is a slightly larger version of the 3116 (6.6L vs. 7.2L). All the 3116’s that I have ever seen had mechanical injection, most of the 3126’s are the E model, which use HEUI injection.

How long does it take to install cat 3126 diesel chip?

You have 30 days to be Satisfied with the RESULTS. With Original Owner. 10 Minute Install – UP TO 30% HP – 15% Fuel Savings ! NO FOOTPRINTS WHEN REMOVED – ON SALE NOW ! Need Assistance ? You have 30 days to be Satisfied with the RESULTS.

How does a caterpillar check engine diagnostic work?

Caterpillar Electronic Engines have self diagnostic capability. When the system detects a problem, the CHECK ENGINE/DIAGNOSTIC (YELLOW) lamp activates. In most cases a diagnostic code will be stored in permanent memory within the ECM.

How to check the active code on a caterpillar truck?

All ACTIVE codes may be viewed using a Caterpillar electronic service tool or by performing the following procedure. Turn the Cruise Control ON/OFF switch OFF. 2. Move the SET/RESUME switch to either position. Hold that position until the YELLOW lamp begins to flash.

Where can I Find my engine diagnostic code?

When the system detects a problem, the CHECK ENGINE/DIAGNOSTIC (YELLOW) lamp activates. In most cases a diagnostic code will be stored in permanent memory within the ECM. The diagnostic code can be retrieved by using either of the following methods. Some vehicles have electronic dashboards that provide a direct readout of engine diagnostic codes.

When to replace cam sensor on Cat 3126?

Cat 3126. Discussion in ‘ Trucks ‘ started by John White, May 22, 2014 . Just replace cam sensor on cat 3126. I don’t have a scanner to remove fault code.

What’s the code on the Check Engine light?

The check engine light never did come on even with the bad sensor. Just had a code 34 when I scanned it with onboard scanner. Truck had no power and hard start at times. Replaced RPM sensor (code 34) starts easy now but not sure if it has the power it should.

When did the Caterpillar 3126 diesel engine come out?

Engine 3126 Caterpillar WebPage. The Caterpillar 3126 is a turbocharged 7.2L inline 6-cylinder diesel engine manufactured by Caterpillar and first introduced in 1997; it was the first electronic mid-range diesel engine that Caterpillar produced.

What is the engine code on a truck?

Just had a code 34 when I scanned it with onboard scanner. Truck had no power and hard start at times. Replaced RPM sensor (code 34) starts easy now but not sure if it has the power it should. Thought if I could erase code 34 and it popped back up again I would know I still have problems. Guess I will have to take it to Cat.

What is the ECM code on a Cummins F650?

F650/750s with the Cummins engine and manula transmission may have an illuminated check engine light with diagnostic code 242. When this code is present, vehicle speed is limited to 45 MPH. There is an ECM software update available from Cummins Service Centers. Cummins Daily Note #DN070025; Ford Broadcast Message 7193.

What causes a stuck injector spool valve on a F650?

The above symptoms on F650/750 with the 6.0, or on LCF with the 4.5, when the engine is cold may indicate a sticking injector spool valve. To reduce the likelyhood of this condition, there is a revised program available for the ECM. This new program will actuate (buzz) the injectors for 30 seconds after the engine is shut off.

Can a Caterpillar 3126 engine have an oil leak?

It’s important to keep the valves adjusted in them, and the 3126E’s tend to have oil leaks in the cylinder head from time to time (coming from the high pressure system that operates the injectors) but it’s usually a very easy fix (O-rings or the pressure sensor). Caterpillar parts are a little expensive! these trucks all have autos behind them too.

What kind of power does a Ford 3126E have?

They are both pretty reliable and make good power (up to 330 h.p.). It’s important to keep the valves adjusted in them, and the 3126E’s tend to have oil leaks in the cylinder head from time to time (coming from the high pressure system that operates the injectors) but it’s usually a very easy fix (O-rings or the pressure sensor).

It is an awesome running truck, he changes his own fluids and has never had any down time with it. The 3126 is a slightly larger version of the 3116 (6.6L vs. 7.2L). All the 3116’s that I have ever seen had mechanical injection, most of the 3126’s are the E model, which use HEUI injection.

They are both pretty reliable and make good power (up to 330 h.p.). It’s important to keep the valves adjusted in them, and the 3126E’s tend to have oil leaks in the cylinder head from time to time (coming from the high pressure system that operates the injectors) but it’s usually a very easy fix (O-rings or the pressure sensor).

What kind of engine is a Caterpillar dump truck?

It is a medium-duty engine and has been used in dump trucks, long haul trucks, ambulances, buses, RVs, boats, cranes, fire trucks, and more. In 1998, Caterpillar released an improved version, the 3126B; in 2002, the 3126E was released; though these improved versions only affected engine electronics, not the actual engine design.

Where can I buy a 2005 Caterpillar 3126 engine?

(USED) 2005 Caterpillar 3126, Complete Engine Assembly. S/N-35CKM54275 P/N-1047828 HP-N/A CPL-198-8859 ECS-N/A Model-3126 For more information about this item call. We ship Worldwide. 929 W Pulask… See More Details Sold By: BASKIN TRUCK SALES LLC. Sold By: BASKIN TRUCK SALES LLC.

It is a medium-duty engine and has been used in dump trucks, long haul trucks, ambulances, buses, RVs, boats, cranes, fire trucks, and more. In 1998, Caterpillar released an improved version, the 3126B; in 2002, the 3126E was released; though these improved versions only affected engine electronics, not the actual engine design.

How to order a cat 3126 engine overhaul kit?

Press enter to collapse or expand the menu. Press enter to collapse or expand the menu. Dealer price and inventory are currently unavailable. You may still build an order and submit it to your dealer to complete your transaction, or try again later.

What kind of engine does a Freightliner FL70 have?

Automatic OD; Spring Suspension; 4.33 Ratio; 11R22.5 Tires; White Color; Single Axle; ISB Cummins Engine 190 hp; 21 ft Length; Standard Cab; Diesel Fuel Type; 10,000 lb Front Axle Weight; 21,000 lb Rear Axle Weight; Drive Side: Left Hand Drive; 4×2 Drive; Actual 1,127 miles, Cummins ISB, Allison …

Why did my cat 3126 not start up?

The next 3126 did not have the steel oil line to the injector.And also check the return fuel fitting in the rear of the head for metal in it.I have seen metal in them when the engine ran out of fuel and I guess if it was restricted it would not bleed the fuel system. Click to expand…

How to bleed a diesel fuel injection system?

Gain access to the injector tops and fuel lines. Some engines have their injectors exposed, while others mount the injectors under the valve cover. Remove the valve cover if applicable. Ensure that the fuel cutoff valve is open. Break the torque with a wrench on the fuel bolt of the last injector in the series to get fuel.

Is the HEUI pump on a chasis 3126?

Ckm39928. It is a 3126. Not B or E. In a 2002 Freightliner chasis motor home. XC series Mechanic’s Assistant: Anything else you want the Equipment Mechanic to know before I connect you? I would think the 164-2 is a result of pressure fluctuation from the pump.

The next 3126 did not have the steel oil line to the injector.And also check the return fuel fitting in the rear of the head for metal in it.I have seen metal in them when the engine ran out of fuel and I guess if it was restricted it would not bleed the fuel system. Click to expand…

Gain access to the injector tops and fuel lines. Some engines have their injectors exposed, while others mount the injectors under the valve cover. Remove the valve cover if applicable. Ensure that the fuel cutoff valve is open. Break the torque with a wrench on the fuel bolt of the last injector in the series to get fuel.

Ckm39928. It is a 3126. Not B or E. In a 2002 Freightliner chasis motor home. XC series Mechanic’s Assistant: Anything else you want the Equipment Mechanic to know before I connect you? I would think the 164-2 is a result of pressure fluctuation from the pump.

How much HP can you get from a 3126 school bus engine?

How much hp can you get out of a 3126 school bus engine 190 hp ? Disclaimer: Information in questions, answers, and other posts on this site (“Posts”) comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts.

Where can I find the Caterpillar parts Manual?

ThisPartsManualisalsoavailablein.PDFFormatonCompactDisc (CD-ROM)-CaterpillarFormNo.SERP3253 ProductandDealerInformation Note: For product identification plate locations, see the section “Product Identification Information” in the Operation and Maintenance Manual.

Why does the cat 3126 have a bad rap?

Why does the CAT 3126 have a bad rap? The 3126 is based on an earlier engine (3116), it appears that earlier engine had some bad problems and this started it out on a bad foot.

How much does a Caterpillar CAT 3116 engine cost?

It is extremely hard to time the fuel system and like the VW on the automotive side, working on the CAT 3116 requires special tooling you can only buy from Caterpillar. Typically, it costs up to $5000 in tooling to work on the 3116.

What kind of Wrecker is a Chevy C60?

1974 GMC 6500 wrecker industrial 427 5 speed with 2 speed rearend. Air brake’s,wheel lift. (2) 16,000 lb Hydralic Winches, split boom ,wheel lift is 10,000… This 1979 Chevy C60 wrecker is equipped with a Holmes 550 twin line wrecker with detachable booms great for towing anything from a school bus…

Where can I find a 1979 Chevy Wrecker?

1979 Chevy C60 Wrecker Tow Truck Located in corvallis, Oregon This 1979 Chevy C60 wrecker is equipped with a Holmes 550 twin line wrecker with detachable booms great for towing anything from a school bus…

What kind of Wrecker is a Chevy Wrecker?

1992 CHEVY C3500 Flat bed tow truck wrecker. Landol center fold. needs a little TLC but is a good old truck have not used much… 8.1 L gas Chevy big block, manual transmission, pw, pl cruise tilt ac with a 21’ Vulcan steel bed, strapless scoops and removable rails and… 454 auto.

Is the Chevy C6500 service truck for sale?

1994 Chevrolet C6500 Service Truck -11’ Knapheide service body, 2’ compressor/welder platform -8005H Auto Crane, 8000# 20’ out reach -Miller Bobcat 225 welder (241 hours) -30 gallon Kohler air See More Details Medium Duty Chevy flatbed for sale.

How big is a 2002 Chevy C6500 cab?

2002 Chevrolet C6500 Cab Chassis CAT 3126 7.2L Turbo Diesel Engine Automatic Transmission 208, 357 Miles 25,950 GVWR (No CDL Required) 200″ Wheel Base 126″ Cab To Axle 162″ Cab To End Of Fra… See More Details Enter search information and click the Search button below.

How big is a Chevrolet Kodiak C6500 truck?

The wheelbase of the truck is 192”. The tread on the front tires are 7/32 and the tread on the rear tires are 12/32. Cab to axle is 123”. The bed of the truck is 19′ long and it is manufactured See More Details

What does a diagnostic code mean on a Caterpillar engine?

CAT Fault Codes | Caterpillar Engine Errors And Trouble Codes Cat Diagnostic codes are used by the electronic system in order to alert the operator that a problem exists. A diagnostic code also indicates the nature of the problem for you, and you can see what is the code meaning with CatFaultCodes.com service.

How do you find a cat fault code?

Count the first sequence of flashes in order to determine the first digit of the diagnostic code. After a two second pause, the second sequence of flashes will identify the second digit of the diagnostic code. NOTE: Catfaultcodes.com indicates the potential effect on engine performance with ACTIVE fault codes.

CAT Fault Codes | Caterpillar Engine Errors And Trouble Codes Cat Diagnostic codes are used by the electronic system in order to alert the operator that a problem exists. A diagnostic code also indicates the nature of the problem for you, and you can see what is the code meaning with CatFaultCodes.com service.

All ACTIVE codes may be viewed using a Caterpillar electronic service tool or by performing the following procedure. Turn the Cruise Control ON/OFF switch OFF. 2. Move the SET/RESUME switch to either position. Hold that position until the YELLOW lamp begins to flash.

Count the first sequence of flashes in order to determine the first digit of the diagnostic code. After a two second pause, the second sequence of flashes will identify the second digit of the diagnostic code. NOTE: Catfaultcodes.com indicates the potential effect on engine performance with ACTIVE fault codes.

How big is a cat 3114 engine bolt?

CAT 3114, 3116, 3126 Connecting Rod Bolts Con Rods with Machined join Step 1 = 54 Nm, 40 lb.ft Step 2 = + 60° Con Rods with Fractured join Step 1 = 70 Nm, 52 lb.ft Step 2 = + 120° Click for more CAT 3114. 3116, 3126 engine manuals and specs

When did the Caterpillar C7 engine come out?

It is the successor to the Caterpillar 3116 engine and was replaced by the Caterpillar C7 engine in 2003. It is a medium-duty engine and has been used in dump trucks, long haul trucks, ambulances, buses, RVs, boats, cranes, fire trucks, and more.

It is the successor to the Caterpillar 3116 engine and was replaced by the Caterpillar C7 engine in 2003. It is a medium-duty engine and has been used in dump trucks, long haul trucks, ambulances, buses, RVs, boats, cranes, fire trucks, and more.

Instead of a direct rod/cable from the accelerator pedal to the fuel pump, the ECM receives a Pulse Width Modulation (PWM) from a throttle position sensor which incor- porates a potentiometer. The sensor is located on the back side of the accelerator pedal.

Is the 3126B engine a permanent part of the ECM?

The 3126B and 3126E diesel truck engines do not have a replaceable personality module. The 3126B and 3126E diesel truck engine’s personality module are a permanent part of the ECM.

Is there a Repair Manual for a 3126 engine?

Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your 3126 Engine like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages.

Why does cat 3126 B won’t start?

Really need to check the HEUI oil pressure while cranking, if it has an internal oil leak or a worn HEUI pump it wont get enough oil pressure to fire the injectors when cranking. rpsunrise Thanks this. I ran the codes as Jas suggested and came up with 87 and 34 in that order.

How to count the flashes on Cat 3126?

Count the flashes, they will be two digit numbers, eg. 6 flashes then a pause then 3 flashes would be code 63. there may be several codes, it will flash them all one after another. You usually need to go through this process several times to make sure your getting the codes correct.

How does the HEUI work on a Caterpillar 3126 engine?

A HEUI injection system (also found on Ford Power Strokes, as well as other engines) uses a second oil pump to boost oil pressures to 1500+ PSI (I don’t know the maximum) and essentially use the high pressure oil as hydraulic fluid. And the computer would control the high pressure oil which then controlled the injectors.

What’s the difference between a cat 330 and 350 hp engine?

If you look closely at the horsepower graphs you’ll see that the only time you see those extra 20 ponies is way at the top of the RPM band so the only time you’ll notice the differnce is when the engine is revved up to climb a steep grade. 98% of the time they’ll be identical in power output.

Where can I buy cat air cleaner parts?

Please contact your dealer or PCC Support. Cannot add product to shopping cart in browse only mode. Retrieving Price….. Contact Us about this item. Purchase of this product requires an additional deposit that is refundable when you return the old core to the selling Caterpillar dealer.

How to order cat 3126 HEUI fuel system?

Press enter to collapse or expand the menu. Dealer price and inventory are currently unavailable. You may still build an order and submit it to your dealer to complete your transaction, or try again later.

What kind of truck is a Freightliner FL60?

1999 Freightliner FL60 Steel Flatbed, California truck now in Wisconsin. RUST FREE! GVWR: 26,000 lbs. CAT 3126 7.2 Turbocharged 6-cylinder Diesel Engine, Automatic Transmission, 156.5 HP, Freightli…

Please contact your dealer or PCC Support. Cannot add product to shopping cart in browse only mode. Retrieving Price….. Contact Us about this item. Purchase of this product requires an additional deposit that is refundable when you return the old core to the selling Caterpillar dealer.

Why do you need a cat engine air filter?

You’ve invested in top-of-the-line Cat® machinery to move your business forward. Cat Engine Air Filters make sure you keep moving forward. Using inferior products to protect your premium equipment diminishes that investment and results in higher repair costs, increased downtime and lower resale value.

Why does my truck engine not start when I replace the ECM?

NOTE: A new ECM comes with an unprogrammed Personality Module in it. If the ECM has been replaced, the ECM WILL NOT COMMUNICATE and the ENGINE WILL NOT START until the integral Personality Module has had software flashed into it. 4.

Why does the CAT 3126 have a bad rap? The 3126 is based on an earlier engine (3116), it appears that earlier engine had some bad problems and this started it out on a bad foot.

Where to find Check Engine codes on Cat 3126?

Cat 3126 that is giving codes 15 & 39. injector accentuation pressure look for chafed or corroded wires in the engine harness between the sensor? Let the group know if you find these switches. Rich. Location:Northern Ca. Rich, on the CAT 3126 I used the engine Cruse Control to find the Check Engine codes, that’s where I got the code 39.

Is there a problem with my Cat 3126 engine?

Thanks Ed 3126 Cat engine have a 3126 cat engine that will start but only run for a few seconds then check engine light comes on and it dies it is in a 99 gmc 6500 topkick have replaced the heui pump, speed control sensor, cam sensor, fuel filters, oil filters, need to get running asap costing me money

What kind of oil does a cat 3126 take?

By the way my engine in Serial# HEP 280486. I tapped into the high pressure oil galley and put a 4000 psi gage in. Had a helper crank the engine while I watched. The pressure started up kind of slow and then quickly headed toward max on the gage.

Where is the manual stop button on a cat 3126?

The red button on the right side of the cylinder is the manual stop, btw. Here’s how it looks like on the 3116. I guess it’s neither much different nor far from that placement also in the 3126, but I can’t be positive about that.

What are the dimensions of a cat 3116 engine?

3116, 3126 engine manuals and specs. CAT 3116 approx dimensions. with accessories length 3116T – 56 in, 1422 mm 3116TA – 59 in, 1499 mm width 32 in, 813 mm height 34 in, 864 mm Click for more CAT 3114. 3116, 3126 engine manuals and specs.

What kind of engine does a caterpillar 3114 have?

CATERPILLAR 3114 3116 3126 Displacement, bore and stroke Displacement 3114 – 4.4 liter, 268 CID 3116 – 6.6 liter, 402 CID 3126B – 7.2 liter, 439 CID Bore 3114, 3116 – 4.13 in, 105 mm 3126B – 4.33 in, 110 mm Stroke all – 6.5 in, 162 mm Click for more CAT 3114. 3116, 3126 engine manuals and specs

How to troubleshoot cat fuel systems and test diesel?

– YouTube How To Troubleshoot Cat Fuel Systems and Test Diesel Engine Fuel Pressure. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

How long does a Caterpillar 3208 engine last?

The well-traveled Caterpillar 3208 began as a 210-horsepower engine and eventually reached a 435-horsepower model. The lower the load factor, the longer the life of the engine. For cruising boats, the load factor should be less than 35%.

What can a Caterpillar 3126 engine be used for?

But if you are just using it in your RV, and you don’t have a lead foot, I think you’ll be just fine. The Caterpillar 3126 engine is a CAT engine that was used for light and medium duty uses. It was used in everything from boats, cranes, over the road trucks and ambulances to RVs and buses.

– YouTube How To Troubleshoot Cat Fuel Systems and Test Diesel Engine Fuel Pressure. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

Which is better a Cummins 6BT or a cat C7?

CAT uses the HUEI injection system (like the Ford 7.3/6.0) which is not as good for making big aftermarket power. c. Many people argue that the CAT C7 is not as reliable of an engine compared to the Cummins 6bt… especially the newer emissions compliant engines.

Is there a cat engine for a 350?

Sure you might say that CAT doesn’t have the production capability or maybe they don’t have a properly sized engine, but those are all things that could be worked out, after all Cummins did it right? CAT already supplies engines for the 600+ series Chevy and Ford trucks, why not one for the 350’s?

Is the Caterpillar 3126 HEUI a medium duty engine?

The Caterpillar 3126 HEUI Engine introduces a new era of the diesel engine in the bus industry using the medium duty diesel engine.

Press enter to collapse or expand the menu. Press enter to collapse or expand the menu. Dealer price and inventory are currently unavailable. You may still build an order and submit it to your dealer to complete your transaction, or try again later.

Where is the ECM located on a caterpillar HEUI engine?

The ECM controls the heater and lamp through a relay mounted beside the intake manifold. Heater operation is determined during three stages of engine operation: Power-up/Preheat, Cranking, and Engine Started cycle. MVP-ER SERVICE MANUAL Page 13-5 The ECM is “powered-up” when the ignition switch is turned ON.

How to find the failure code on a caterpillar bus?

The failure code can be retrieved by 1) using the Caterpillar Electronic Control Service tool, or 2) using the “Check Engine” light if the bus is equipped with cruise con- trol. Check Engine Light Operation When the ignition switch is turned ON, the lamp will illuminate for 5 seconds, which is a check to insure the lamp is working.

What kind of engine does a cat 3126 have?

I have a 3126 in a 2004 Ford that was running fine when I parked it. Tried to start it after is sat for a couple of weeks. The engine cranks like it should but makes no signs of starting.

Really need to check the HEUI oil pressure while cranking, if it has an internal oil leak or a worn HEUI pump it wont get enough oil pressure to fire the injectors when cranking. rpsunrise Thanks this. I ran the codes as Jas suggested and came up with 87 and 34 in that order.

Not at all too techie! After trying everything I could think of or find elsewhere on the web, disconnecting the IAP allowed the 3126 to start immediately, but run just a little ragged. Reconnecting the IAP afterwards, while running, the engine smoothed out and continued to operate normally.

Location: The IAP is located on the front left side of the engine and screws into the head just to the right of the HEUI pump. Has a 10″ wire harness with a triangular 3 pin connector. Google “3126 sensor locations” for some clear pictures if in doubt.

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Ruth Doyle