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O2 Faults
About 8 mo. ago I got my car. One of the things I did is replace the O2 sensors since it was giving me a bad reading for one. I replaced them all with USOS-4000 Universal Sensors. Now it is reporting bad O2 sensors again. This is the breakdown of what has been happening:
7/29/09 - P0139 (replaced)
8/13 - P1118 (replaced)
8/30 - P1502, P1115, P1117, P1119 (replaced both pre sensors)
current - alarm has gotten wet and can't proceed but before that happened CEL came on once again
The thing that concerns me is that on the Durametric website, it says in troubleshooting '00 986s that when multiple O2's go off, it can mean that I have a bad MAF or air leak. That P1502 is suspicious. I had that code before and it turned out that my brake booster hose had a leak. Replaced it and CEL went away. This was about 3 mo. back. What do you guys think is going on?
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