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#2 Fuel injector signal dead. 900 1991

posted by  Amarin on  Sat Mar 31 15:37 CST 2018
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last visit: Thu Oct 23 22:42 CST 2014
[RELATED]

Have you switched the plug from another injector to the so-called-faulty injector to test if its the injector itself or the plug connection thats defective. Look for "pushed-in" terminals inside the injector plug too. These could be repaired. Whats the condition of the injector wire? Any breaks in insulation etc?

The wiring scheme is that ALL injectors share the same signal from ECU. In the ECU there is only one transistor (not MOSFET, yes I've studied several 900 series ECU) driving ALL the injectors simultaneously. The injector plug connections are interchangeable only limited to wire lengths.

Regards,
Amarin.






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