Codes

[CochranAway]

I recently posted in the performance threads by accident. but hers the skinny on whats going on. Check engine light has came on i have the codes they are 126 and 157. I have cleaned the MAFS. car runs normal with check engine light on. occasionally in the mornings the CEL will be off and performance is terrible. it feels like it stalls out if i push the gas over 1/4 throttle i have to slowly accelerate and it seems to run slightly better after the car has been driven for a while.

 

[luigisho]

Since you have a MAF code I will go with that as the probable cause. Sometimes cleaning gunk off the filament works and sometimes the sensor is just bad. BAP rarely goes bad but it is possible.

One way to check the MAF is when it's running bad unplug the connector on the sensor and see if it runs better.

 

[CochranAway]

i unplugged the sensor when it was running okay with CEL on and it did nothing but when it was running bad and CEL was off i unplugged it and it died