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Message: <blockquote data-quote="WraithTR1" data-source="post: 797866" data-attributes="member: 8955">I have a 1995 GT automatic, and I just ran a diagnostic check and I believe I got the codes right and wanted to get some ideas on solutions. I got interrupted while doing the KOER the first time, and the second time got different results from when I tried doing it again.KOEO539 539 118 118 9 181 189KOERPartial4 121 16?????Full536 632The partial seems to indicate an issue with the TPS, this was the first time I started the car all day, and usually it runs rough for about 3-5 minutes when first started and then is fine after that. From what I gather I'm getting:KOEO539=AC On (forgot to turn it off)118 ECT Sensor Circuit above max voltage181 & 189=Right/Left Side still lean at richest adaptive limit during part throttleKOER536=Brake on off circuit failure632=Overdrive cancel switch not changing stateDid I decode this right? What would be causing it to run lean, changed the fuel filter just over a year ago, clogged injectors maybe? And not sure what the brake circuit failure would indicate exactly, and overdrive I don't think I've actually ever switched it off.</blockquote>