help now
04-27-2007, 10:57 PM
#1
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help now-got codes now ok car is a 98 m6 z28 118000 miles. my problem is periodicly the endine seems to run on the pass bank only its like a bog and then all suddeen will full power comes back and it will switch back and forth like this 
what could this be i just replaced the fuel filter and have plugs to hange this weekend what could cause this problem it is no longer fun to drive my baby
po135- front o2 on driver side
po102-maf low input
po155-front o2 pass side?
what could this be i just replaced the fuel filter and have plugs to hange this weekend what could cause this problem it is no longer fun to drive my babypo135- front o2 on driver side
po102-maf low input
po155-front o2 pass side?
Last edited by purple98haz28; 04-28-2007 at 12:06 PM.
04-28-2007, 06:43 AM
#2
Check for codes
Fuel pressure (failing fuel pump?)
Make sure everything is up to spec (Tune up)
Clean your MAF sensor thermistor wires (I think they are called) (CAREFULLY with Qtips and electronics cleaner)
O2 sesnors failing giving bad info to your computer
Any mods to the car?Cam,aftermarket MAF??
Just some ideas man..
Fuel pressure (failing fuel pump?)
Make sure everything is up to spec (Tune up)
Clean your MAF sensor thermistor wires (I think they are called) (CAREFULLY with Qtips and electronics cleaner)
O2 sesnors failing giving bad info to your computer
Any mods to the car?Cam,aftermarket MAF??
Just some ideas man..
04-28-2007, 12:08 PM
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btw the car has longtube headers with 24" of pipe to save my o2's seems to not be workin but that maf code what is up with that how do i go about cleanin it
04-28-2007, 03:33 PM
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There's a product at autozone that will clean it without risking damage to the screen and wires. I think CRC makes it. It's specifically called MAF cleaner. NOT CARB CLEANER
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04-29-2007, 05:52 PM
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k i cleaned it it seemed to help the car tried to bog once in a 10 min drive it kicked out of it really quick tho. maybe it will do that less. thank yall any other input tho is appreciated
04-29-2007, 09:40 PM
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k i drove to wal mart. on the way it drove wonderfully but on the way back it bogged from a light an was surging slightly. i guess i need to figure something out about some o2 sensors. is there anyway to clean them for a temp fix. it should be just burning the carbon right???
04-30-2007, 08:58 AM
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Originally Posted by purple98haz28
k i drove to wal mart. on the way it drove wonderfully but on the way back it bogged from a light an was surging slightly. i guess i need to figure something out about some o2 sensors. is there anyway to clean them for a temp fix. it should be just burning the carbon right???
That surging/bucking is not from your O2 sensors so leave them alone until you can have them tested or replaced.
Your MAF should be tested first by someone with knowhow, unless you can afford to replace it and not have it be the problem. However, on a lighter note, a bad MAF can definitely trigger your other two codes. So, you may not need to replace your O2's. And if anybody tells you they've cleaned their O2's and it worked like a charm, well good for them, CAREFULLY cleaning your MAF is ok if there is heavy buildup of some sort on it. Good Luck.