How do I fix the engine code P0172?
What repairs can fix the P0172 code?
- A repair of a vacuum leak.
- A replacement of a faulty fuel injector, fuel pump, or fuel regulator.
- Replacement of an excessively restricted air filter.
- Replacement of the thermostat or coolant temperature sensor.
- A replacement of the spark plugs.
Can bad spark plugs cause engine to run rich?
Spark plugs are key components that provide the charge needed for internal combustion. However, if the spark plugs are faulty or damaged, this will lead to incomplete burning of the fuel to create the power necessary to move the car. Damaged spark plugs can lead to the engine running rich symptoms.
Can a vacuum leak make a car run rich?
A vacuum leak can cause a rich condition and raggedy running. If the leak is medium, the ECU will detect something is wrong and run in one of its mapped safety modes.
What are the symptoms of trouble code p0172?
The symptoms of trouble code P0172 are usually the same symptoms of an engine running rich. Normally, your check engine light will be on (unless the bulb is burnt out). But in addition to that, here are some additional symptoms: Strong fuel or rotten egg smell from exhaust. Poor fuel economy. Engine hesitating.
How much does it cost to diagnose p0172 Chevrolet code?
The cost of diagnosing the P0172 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0172 CHEVROLET code detected? – Fuel injection system does not operate properly.
What does p0172 mean on a fuel trim?
Regarding your fuel trim problem, P0172 means the engine is using too much fuel, and the ECM is trying to reduce it. If there are fuel problems, such a leaking fuel injector or stuck fuel pressure regulator, unmetered fuel will simply dump into the cylinders.
What does it mean when your ECU says p0172?
P0172 indicates that there is too much gasoline being detected in the exhaust gases exiting the combustion chamber. The ECU uses a number of instruments, such as the mass air flow sensor (MAF), oxygen sensors, and manifold absolute pressure (MAP) to monitor the air-fuel ratio of the engine.