After wasting $165 on an APPS and another $110 on a new MAP (both threw codes & APPS checked bad per flowchart), still having the same erratic throttle problem
. Codes also showed ECM and various voltage out problems, but was told could have been triggered by bad sensors. Now I think I'm down to bad ECM or loose/shorted wire (that I can't seem to find). Don't want to throw another $500 bill into the fire with a new ECM if there's anything else I haven't thought about. Anybody have any ideas?
About a week before problem happened, I replaced (auto) trans. Drove for about 4 days then problem hit. Rechecked all connections to and around trans and couldn't find anything loose, broken, etc. Can anyone help me on how to go about tracking ALL possible wiring ground/short problems? Not sure where all of them located that are associated with the ECM.