I have a 2000 chevy lumina and have ahd the mass air flow sensor reolaced twice both times were after market parts and now its happening again, whats wrong that they are missing or doing wrong? the code is p102
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Re: I have a 2000 chevy lumina problem
Try a different brand sensor if your not using GM. Make sure your using good quality parts and check that the wire that plugs into the sensor is in good shape (no corroded pins in the plug, has low to no electrical resistance)
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- Faulty mass air flow sensor
- Intake air leaks
- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor circuit poor electrical connection
Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.
There is only one Mass Air Flow sensor .No such thing as a bank 1 or bank 2 Mass Air flow sensor on a 2000 Chevy Cavalier. I think you mean Bank 1 O2 sensor . For that I need to know if you have a 4 cylinder or a V-6 . If it is a 4 cylinder it is located in the center of the exhaust manifold at the front of the engine under the hood. If you have a V-6 it is still loctaed in the exhaust maniifold but at the end of it where the exhaust pipes bolt up
Hi there: This code is set when the MAF (Mass Air Flow) meter is not sending the PCM the correct information. This can be due to a bad conection of the rubber intake hose between the MAF and the Throttle plate opening, a dirty air filter, a dirty mass air flow or a bad mass air flow.
Most programmer have you tie into the iat sensor in the mass air flow. this can cause the the iat sensor oto short out.
Inspect, clean or replace the Idle Air control valve...about $35 for the part...also how is the air filter? A clogged catalytic converter can cause this too? ( A free check at quality muffler shops. Hope this helps.
A lot of times when the car is hard to start when it is cold, it is the mass air flow sensor causing the problem. On the newer vehicles the mass air flow sensor acts as the older choke worked. It limits the amount of air flow. Which will make the engine start faster and easier.
Code 12 is just a code telling you that you are in the diagnostic mode and it is working. Code 33 is a mass air flow error code. The computer is detecting mor air going into the engine then required at the detected rpm for more than 5 seconds. Could be caused by a faulty connection(wiring harness,ect) to a bad ECM(electronic control module) or MAF(mass air flow) sensor. Also the TPS(throttle position sensor) could be out of adjustment.