ecu ground question
Posted:
Tue Jan 11, 2011 5:25 amby Ajax1989
If my ecu ground came off and i hooked it back on alot will it mess up my ecu?
like a switch on the ecu ground wire for a kill switch
Posted:
Tue Jan 11, 2011 7:23 pmby d-mon
no
its like taking the battery out of your car.
Posted:
Thu Jan 13, 2011 5:55 pmby suspendedHatch
You should not do this.
There are several grounds on the ECU.
There are sensor reference grounds that go to your thermostat housing. Messing with the resistance here will affect how the car runs.
There is a ground for ECU power but if you cut this, the circuit may find ground through one of the other circuits and that could be bad.
At the very least, you're erasing your ECU memory all the time so it will never run optimally.
The best thing to do is put your kill switch on your main relay ground. The main relay has a solid black wire, sometimes branched into two. Cut here and place your switch. It is safe to extend this wire since it's low current. There should be a how to on this site.
