MAF, MAP, TPS Problem with 2000 Grand Prix GT
09-21-2009, 08:02 PM
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MAF, MAP, TPS Problem with 2000 Grand Prix GT Wasnt sure where to post this, but it's a question about my girlfriends Grand Prix GT 3800 V6
The problem is, it doesnt idle well and it is throwing a code. She got autozone to tell her what the code was, and it was possible MAF problem, MAP, or TPS.
If you are driving the car down the road, and you take your foot off the gas the RPM's bounce up and down about 500 rpms until you come to rest.
I have cleaned all of the sensors, and connectors, so i am sure that it is a faulty one, but i dont want to play "guess the sensor".
If i pull the battery and reset the PCM the problem will entirely go away, until the SES light comes back on, and then its a problem again.
I am thinking the MAF is bad, and it is running open loop at first after the sensor is reset, and that is why it's running correctly, and once it starts reading the MAF it goes haywire, but i'm not sure about this
Any insight. Alot of smart guys on here
The problem is, it doesnt idle well and it is throwing a code. She got autozone to tell her what the code was, and it was possible MAF problem, MAP, or TPS.
If you are driving the car down the road, and you take your foot off the gas the RPM's bounce up and down about 500 rpms until you come to rest.
I have cleaned all of the sensors, and connectors, so i am sure that it is a faulty one, but i dont want to play "guess the sensor".
If i pull the battery and reset the PCM the problem will entirely go away, until the SES light comes back on, and then its a problem again.
I am thinking the MAF is bad, and it is running open loop at first after the sensor is reset, and that is why it's running correctly, and once it starts reading the MAF it goes haywire, but i'm not sure about this
Any insight. Alot of smart guys on here
