thomp62301 Posted January 19, 2009 Report Share Posted January 19, 2009 (edited) Keep getting the ses light on my 2002 Pontiac Grand Prix GTP. Code PO102 MAF Circuit Low Input. Removed and cleaned the MAF, and no difference. Could the sensor be bad? The car immediatly stalls when started from time to time and hesitates at full throttle. One thing I have noticed latley is the "rotten egg" smell in the car after hard accerlation (guessing it's the cat) not sure if it could be related. The car has 80,000 miles on it. Its has an SLP 3.4 pulley, CAI and Cat back on it. Edited January 19, 2009 by thomp62301 (see edit history) Quote Link to comment Share on other sites More sharing options...
kcsilveradoss Posted January 19, 2009 Report Share Posted January 19, 2009 i know gm has had a problem on w cars with the engine harness rubbing thru at the air condtioning accumulator. check to see if the harness is rubbing against it and look for shiny wires coming thru. sounds like a reference wire to the maf may be grounding out. Quote Link to comment Share on other sites More sharing options...
Jaymz Posted January 19, 2009 Report Share Posted January 19, 2009 while its idling uplug your maf, if its operating correctly the motor should studder then choke out and quit... if theres no difference the maf is bad most likely Quote Link to comment Share on other sites More sharing options...
zippy Posted January 19, 2009 Report Share Posted January 19, 2009 I can tell you that I sold alot of maf's for those cars when I worked for the dealer. Certainly a possibility. Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted January 19, 2009 Report Share Posted January 19, 2009 +1 for a bad MAF Luke....you will know when the cat craps, you will have an idle rattle, and a rattle at certain RPMs....plus a P0300 random misfire code. The cat in my '04 GTP lasted maybe 10k behind the SLP pulley upgrade...... Quote Link to comment Share on other sites More sharing options...
kcsilveradoss Posted January 19, 2009 Report Share Posted January 19, 2009 +1 for a bad MAF Luke....you will know when the cat craps, you will have an idle rattle, and a rattle at certain RPMs....plus a P0300 random misfire code. The cat in my '04 GTP lasted maybe 10k behind the SLP pulley upgrade...... I know when the cat craps because it stinks in the house Quote Link to comment Share on other sites More sharing options...
thomp62301 Posted January 19, 2009 Author Report Share Posted January 19, 2009 I know when the cat craps because it stinks in the house Quote Link to comment Share on other sites More sharing options...
thomp62301 Posted January 19, 2009 Author Report Share Posted January 19, 2009 +1 for a bad MAF Luke....you will know when the cat craps, you will have an idle rattle, and a rattle at certain RPMs....plus a P0300 random misfire code. The cat in my '04 GTP lasted maybe 10k behind the SLP pulley upgrade...... I actually read on the GTP forum that a bad MAF will ruin the cat also. I know thats bad. 15,000 miles since the pulley change and it's stinkin inside when you get on it. Quote Link to comment Share on other sites More sharing options...
thomp62301 Posted January 20, 2009 Author Report Share Posted January 20, 2009 (edited) just ran the car and unplugged the MAF and no difference in the way it ran, so I guess i'll be getting one tomorrow. Edited January 20, 2009 by thomp62301 (see edit history) Quote Link to comment Share on other sites More sharing options...
Jaymz Posted January 20, 2009 Report Share Posted January 20, 2009 just ran the car and unplugged the MAF and no difference in the way it ran, so I guess i'll be getting one tomorrow. bingo Quote Link to comment Share on other sites More sharing options...
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