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CEL! P1129. Cleared and no return

FrayAdjacent986
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FrayAdjacent986 Member

FrayAdjacent986

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Posted (edited)

Friday when I was going to the doc's office to get my shots (immunotherapy), when I accelerated out of a light, the dreaded Check Engine light came on! CRAP.

Went to a couple auto shops to see if I could get the code read... one shop didn't have their unit and another shop's unit wouldn't read the code. So I ended up going to a buddy's house who has a scanner and got the code. P1129. I believe he had gotten the same code along with a P1128 from his 996 when he had it a couple years ago, and it turned out to be a failing MAF.

I cleared the code and drove the car plenty over the weekend, even got on it pretty hard... and the code has not returned.

I figure I'll go ahead and remove the MAF and clean it. I went ahead and dumped a bottle of Techron in the tank in case there was some sort of lean situation caused by dirty injectors or something. Given the car was pretty dirty when I got it, it wouldn't surprise me if the fuel system isn't the cleanest.

Anyone have any similar behavior? A P1129 or similar that when cleared doesn't seem to come back?

Edited by FrayAdjacent986
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