I have a megasquirt computer running the Galant. I am unable to adjust my idle and need some testing input.
I have a new ISC and have verified battery voltage on pins 2 and 5 of the connector (the 2 middle ones).
To verify the computer is grounding the other terminals, could I just use a test light connected to the "hot" pins and each of the grounds while trying to actuate the ISC? That would verify both B+ and ground.
The ISC vibrates when actuated, but I can't see that it is moving much when trying to run it from opened to closed positions.