OK, car has been running great but last week it
started to idle odd and then started dying. Hooked up a code reader
and get the following codes: P1120, P1290, P1275, P1280, P1285.
Usually in that order.





The APS was replaced this summer - dealer said it was shot, but I never saw the codes.




Now here's the trick - I replaced the part myself, but since I
don't have a Tech2, I couldn't set it to 10-15% per directions.
However, upon replacement the car worked fine with no codes.





The codes above are pointing more towards APS than TPS.





Anyone have any suggestions?</span>
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you have an open in either the APS circuit to pcm or to the TPS from the pcm somtimes if you look at it with the tech 2 it will so ok but other times it reads eratic, you need to take it to a good dealer and have them look for this problem they should know about this problem from there field eng.