Quote:
Originally Posted by Ilkka
Isn't this the problem? Injector- is 10.8V (or actually 0.12V when connected to ECU pin3) when injector+ is 12V? Higher than 0.5V difference.
I don't understand why injector- goes down to 0.12V when connected to ECU pin3. The pin3 must be grounded during pre-crank, otherwise it doesn't make sense.
What's between those two wires (injector + and -) inside the box?
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If pin 3 is grounded the fuel injector must be firing at 100%, if there is 12V on the other side of the fuel injector.