MicroSquirt.com read only forum (Jan.15,2018)

Im using a Microsquirt module 2.2m

From my understanding the IAT should have 5v but i get 12v. i went through and checked with a multimeter to see where and what volts i get.

I found i get 5v at vref and coolant temp pin
Also get 5v at one side of R7 but 12v on other side but it reads 2.39ohm with power off.
I get 12v on both sides of R8 and 12 v on one side of c15 and c16 and ground on the other.

It sounds like resister r7 is bad but it reads good resistance through it, could this still be the problem?

heres some paint drawling to explain more

Thanks,
Steve

*wow* It sounds like you have the VRef hooked up to 12v in the wiring somehow. Unplug the harness, check voltage on the VRef wire vs ground. You may have done very bad things to your processor.

The less destructive possibility is that the ECU is not grounded.