Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Once an ECU driver goes as a result of shorted coil, several ECU IC circuits will be next in line to be damaged. Why risk your $375 socketed ECU by running with a bad ISC?

April 26, 2017circuits coil damaged driver ECU IC line shorted

0

Posted

Once an ECU driver goes as a result of shorted coil, several ECU IC circuits will be next in line to be damaged. Why risk your $375 socketed ECU by running with a bad ISC?

1 Answer

0

Posted

ECU drivers are circled in red: 3. My ISC tests ok, but I know it’s not working. What gives? Sometimes, the ohms reading can be in spec but the ISC is still bad. Testing with a 6V battery is a better test (tests the ISC motor), but even then you can’t be 100% sure. It could be a mechanical plunger problem as opposed to an electrical coil problem, see below #8. Or, your ISC O-ring could be missing, or leaking.