Hello,
I have strange case. Opel Combo with Isuzu engine 1.7DT, year 2004. Engine ECM does not send timing signal for injection pump ECU. I've checked errors, all clear. Fuel doesn't come to injectors, as timing valve is still closed (checked with oscilloscope).
Wiring checked, ECM reads CKP & injection pump position sensors correctly. No immo errors. Replaced ECM, and still the same.
Does anybody know what could be the problem?![]()
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