What does the code p0171 mean on a Chevy Equinox?

One of the most common trouble codes with the Chevy Equinox is the P0171 code. This code number references a number that is given to you when you plug your car into a OBDII scanner. P0171 is an OBDII trouble code. The code technically stands for: The code is thrown when the oxygen sensors detect that there’s not enough oxygen in the exhaust system.

What is the OBDII code on a Chevy Equinox?

What causes a Chevy Equinox to misfire at idle?

Misfire – If the air fuel mixture has gotten too far from factory specs, this can cause the Equinox to misfire. Idle Issues – With the air/fuel mixture altered, the vehicle can idle erratically as the computer compensates to keep the engine running.

Is it okay to drive a Chevrolet with p0171?

It is okay to drive your Chevrolet with P0171 for a short period of time, but driving with this code for an extended period of time can overheat the engine and cause internal engine damage. It is important to complete the entire diagnostic process when diagnosing P0171.

When to use lean condition code p0171?

Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered.

What does lean fault code p0171 mean on a car?

Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these codes derive from Oxygen Sensor (O-2) readings. A lean code or codes suggest that there surely is too-much air in the exhaust.

How much does it cost to diagnose p0171 Chevrolet fuel injection system?

The cost of diagnosing the P0171 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour. When is the code detected? – Fuel injection system does not operate properly.

What does rich mean on a Chevy Equinox?

A rich condition indicates that the air fuel mixture has too much fuel or not enough air. This would be the opposite of a lean condition, which’ll throw P0171. The P0172 code on a Chevy Equinox will often be thrown if the fuel injection system is not operating properly.

What does Bank 1 mean on Chevy Equinox?

It means that the motor is running with a rich condition. P0172 is thrown when the oxygen sensors detect that the air fuel mixture is too rich. Bank 1 refers to the rich condition being detected on the side of the engine with cylinder 1. A rich condition indicates that the air fuel mixture has too much fuel or not enough air.

What causes the p0455 trouble code on a Chevy Equinox?

There are many things that can cause the P0455 trouble code to trigger in your Chevy Equinox. Here are the most common problems that will throw the code: Evap System Hose– The hose that carries the fuel vapor from the fuel tank to the intake manifold can begin to leak. This will cause the P0455 code.

How does the EVAP system work on a Chevy Equinox?

The EVAP system captures all fuel vapor from the fuel tank and sends them to the engines intake in order to be ignited in the normal combustion process. When there is a large leak in the Chevy Equinox’s EVAP system, it will throw the P0455 OBDII Code.

What to do if check engine light code p0171 is triggered?

If check engine light code P0171 is triggered again, check the rest of the vacuum lines for leaks and continue to the rest of the diagnostic process. Remove the mass air flow sensor and clean the sensor using mass air flow cleaner or contact cleaner.

What does p0171 mean on a fuel mixture?

If it’s a short-term lean mixture the fuel mixture is often very lean. If it’s a long-term mixture, it can register the code because of a small notice of lean mixture over time. The P0171 code means that the front O2 sensors have recognized a lean mixture. The front O2 sensors are adjusting the fuel mixture that is coming out from the engine.

What causes a trouble code on an equinox terrain?

If the fuel pump delivers the proper fuel and volume, If nothing else solves the problem, clean the fuel injectors. Other possibilities for a Equinox P0171 or Terrain P0171 trouble code include a faulty EGR valve that’s allowing either exhaust or ambient air into the engine.

What’s the trouble code for a terrain p0171?

Other possibilities for a Equinox P0171 or Terrain P0171 trouble code include a faulty EGR valve that’s allowing either exhaust or ambient air into the engine. Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. They include wiring diagrams and technical service bulletins.

What does p0171 mean on a fuel meter?

A P0171 FUEL METERING TOO LEAN code can mean the engine is getting too much unmetered air or too little fuel. So you want to see if the PCM is trying to add fuel. Refer to the short and long term fuel trim data on your scan tool. Short term fuel trims should vary as your drive the vehicle.