Header install and now first code
05-23-13, 10:32 AM
#17
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Wanted to update this thread. On May 11th (after my 3rd code), I decided to double up the PPE gaskets where the headers meet the Joe Z exhaust. I did this even though we never found any leaks using soapy water. I also took out both O2 sensors and swapped sides. So far, so good. No more codes. The strange thing was, I was throwing the code the same way all 3 times. Driving down the highway for 10 minutes or so, and then down shifting when hitting the offramp. Every time the code went was the 4-3 downshift. Strange, but I'm going to knock on wood and hope I fixed it.
Weird we both have the same symptoms... I keep a cheap code scanner in the car in case I need to clear it, but it only happens every 10k or so.
05-27-13, 09:27 AM
#18
Welp, it happened again last night. Same situation...Driving down the highway for 10 minutes, hit the off ramp and when I downshifted from 3 to 2...bam....code. Went to Autozone this morning and got a P0139 code which I believe is now the driver side O2 (the same sensor as before that I swapped sides). So essentially it went from bank 1 to bank 2. I'm going to rule it as a faulty sensor at this point and replace. Wash, rinse, repeat.
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