previously working megasquirt has a clt, ait, and afr proble

[asumsatlil]

My megasquirt running my car has developed a problem where the values for clt ait and afr are either staying steady a value and not moving even using a megasquirt tester.

[asumsatlil]

The coolant is stuck too 180, iat and o2 only have a small up and done even adjusting the resistances. Im looking through some online schematics to figure out a similar part between the 3. I Believe all 3 had a short to ground since all the are grounded together to the battery. Every thing else is grounded separately.

[asumsatlil]

mother board
24 Ad1 and 25 Ad2 5volts to positive
31 VREF 5v to Ground
no contunity between 24 and 25 too 31 so no ground short in mother board

PCB
C4-3.204k ohm* - spec.001uf 100v
C6-1.42k ohm

R4-2.4k ohm - spec 2.49 ohms
R7-2.4k ohm

R5- 2.18k ohm - spec 2.2k ohms
R8- 2.18k ohm

C5-4.95k ohm*- spec 1.0uf 50v
C7-2.66k ohm*

D2- jumped
D3- 2.55 ohm* - spec GPP 50v

i believe its one of * that is causing the problem for coolant and AIT. looking for more input on this problem

[Matt Cramer]

What MS variant is this?

[asumsatlil]

Megasquirt 2 v3

[Matt Cramer]

First, please check if the voltage on the ADC pins on the 40 pin socket move while testing on the Stim.

Checking a capacitor with a meter set to ohms usually does not produce any useful results, unless you find the capacitor is a dead short. Which does not appear to be the case here.

[asumsatlil]

It seems to be working now, I took it all apart (removed stim and mother board) last night just put it back together and it seems to be working again