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2 issues, 5 codes. need help please

dmahlikGT

dmahlikGT

New member
Issue 1 has been here for the long run. I've been thru 2 different o2 sensors and 2 zzp extensions since I installed my SD headers last year. These codes will not go away and it's affecting my gas mileage. P0035, p0036, p0141 and I think a code p0135 Idk I'd have to check again. It's all involving the front o2 and Idk why. Something said low voltage bank 1 blah blah. Anyone had this issue or could give me a possibility? Issue 2 is a random misfire code. Upon startup car idles pretty rough and after awhile it evens out. The misfire does not affect drive ability at all only idling unless I have the ac on. Plugs are fresh,coils done just over a year ago but I'm thinking maybe my wires? Injectors are firing and compression is good. Any ideas?
 


kinda a long shot. but my I had them same issue with an 02 extension melting on my ad headers. blew an ignition fuse under the hood. then my boost bypass valve failed. so make sure you bypass valve is open at idle and that the ignition fuse under the hood isn't blown
 
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