Syvecs Forums

Yes it was fine untill I used the isolator to stop the engine, it cut the power to ecu but ignition was still on so other stuff will sill have had power.

Hi when installing a solid state isolator I had a constant 12v supply to the ECU with ignition off. The car now starts OK but quickly develops a bad misfire that gets worse util will hardy run. Have put ignition supply back through switch but sill have misfire. Could having a constant power supply t...