Thread: Alright so I have a few problems

So I have be having this problem with my car (148k body, 100kish motor) , when at a idle like at a stop light the motor will jump up in RPM from 700ish to 1500ish. Once I start rolling the PCM throws the P0102 code. When I have the scan tool hooked up I see the PCM not reading signal from the MAF, but its only for a second or two. Once at speed it never seems to bother anything, MAF runs fine and no codes pop up. I can go a few days before it will throw the code, the PCM even clears the code sometimes.


Now today on the way home a new problem has come about. Driving down the highway cruising around 70 the motor seemed to jerk. Few minutes later it did it again and threw a P0171 code. It did it 3 or 4 more times on my way home (I Travel 40 miles each way to work, 95% highway).

After reading a bit in Alldata I noticed that a P0171 could also be caused by a bad MAF, but before I went out and spent money on a MAF just wanted to get your guys opinion. I was also going to pick up a fuel filter and throw that into it as well. Thanks guys.

they sell maf cleaner you could try to clean it first.

junk yard maf's are like 40 bucks so go that route

and check the maf's plugs wires for cracks in the insulation,

my wires were so dry rotted i had to put a new pig tail on my harness to the maf

the stalling and hesitation is directly related to your MAF. if it's not reading the right air flow, you're not getting the right fuel. MAF cleaner didn't work for me, but it's worth it IMO to spend a couple bucks to try before you buy an 80 dollar reman'd part.

I did try the cleaner a month ago, didn't seem to help all that much. I had another MAF I had gotten a year or so ago and tried it but it didn't seem to change anything either, but that one might of been bad as well being it sat for around a year in my garage. Thing is a reman MAF for a 98 GTP is 150 bucks at NAPA.

they usually take a core charge. i've had to buy three of them now (wtf?!) and one was still under the one year warranty. try autozone i guess.

Thats without the 87 dollar core charge, and Advanced is only like 10-15 bucks cheaper so I'd rather pay for the NAPA brand. The 97-98' MAFs are more expensive for some reason.