Here places ti check for bad grounds that ar directly related to the grounding of the pcam
1..the ground strap from batery to cylindr head also has pcm ground wires bolted ther together
2..phisical grounding strap from eng block to firewall sheetmetal
3...the power control modual/big black fuzebox..in the engine bay
4.. at pin number 85 on the asd relay socket this is the wire from the pcm used ti turn it on .
On thing at a time right so after checking grounds if nother ther is found them you can move to power supply ..but this is the best way ti start trust me ive been here before ..meanwhile if someone sees this
Maybe someone can provide you with a isolated ground wiring diagram pcm to asd and other various points around the vehicle if its availible ...alldata maybe ? Thanks for any help . I wish you lots of luck be well"
Sep 27, 2026 at 7:39 AM