Quote:
Originally Posted by guido
Thanks for the reply. I've since removed the connector block from the ECU and cleaned the contacts with contact cleaner spray. While I was there I measured the resistance between the ECU connector block pins the injector plug pins and both read 0.15ohms which was the same reading as the plug on injector 2 so I assume that's normal?.
|
I'm afraid that your resistance test proves only one thing and that it has not got an open circuit. Injector circuits five with 120v at around 20 amps. If your harness was held together by only one single strand it would show a very low and acceptable resistance reading but could that one remaining strand handle 120v at 20 amps?
Best test on injector circuits is with an oscilloscope measuring voltage at the ECU and at the injector connector, that will show any loaded circuit dynamic voltage drop along with inductive current clamp to establish the amps flowing as low amps means circuit resistance if supply voltage is correct.