dsmkid303
Probationary Member
- 9
- 1
- Jan 6, 2016
-
elizabeth,
Colorado
Long time viewer first time poster. I'm extremely frustrated and stumped for the first time so I'm posting here in hopes someone smarter then me can explain what's going. I'll try and make this fast I'm finishing up the wiring on a 1994 eagle summit 2g swapped finally got everything together and then noticed in link I was only getting 2.7 volts at wot. checked 5v sensor power and found it wasn't getting full 5v power. Finally traced it down to the isc I had accidentally wired the power to 5v sorce instead of 12v fixed that and now have full 5v.
however while i was testing everything I noticed something odd. Unplugged ECU key on so mpi is powered and grounded on harness hooked up to everything els I was seeing 12v on the 5v sensor power and the ECU sensor ground unhook maf and it goes away? With ECU plugged in I get 5v and sensor grounds like normal MAF functions like normal along with everything els am I overthinking this?
I have pretty much tested continuity over every inch of the harness and checked for multiple shorts to power with no luck but I'm only seeing it with key on mpi on ECU unplugged MAF plugged in. Not trying to burn up sensor grounds or 5v reference circuits in the ECU.
however while i was testing everything I noticed something odd. Unplugged ECU key on so mpi is powered and grounded on harness hooked up to everything els I was seeing 12v on the 5v sensor power and the ECU sensor ground unhook maf and it goes away? With ECU plugged in I get 5v and sensor grounds like normal MAF functions like normal along with everything els am I overthinking this?
I have pretty much tested continuity over every inch of the harness and checked for multiple shorts to power with no luck but I'm only seeing it with key on mpi on ECU unplugged MAF plugged in. Not trying to burn up sensor grounds or 5v reference circuits in the ECU.