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Batts
9th May, 2024, 12:00 PM
Fam,

I have an Infiniti g50, 2015, AWD, 3.7 in the shop.

It arrived with BCM soaked from water infiltration. No activity from the push to start and not recognizing keys.
We replaced BCM, ECM, and programed modules with keys.

I have no codes in any modules. Immo appears to recognize keys, but the engine cranks, does not start.

We have fuel pressure, spark and compression. No ground pulse to injectors. (Will not light a noid, power is present)

Watched a case study about the reluctor wheels walking in the cam sprockets and I thought this could be it, but I scoped the cam sensors and the wave pattern is comparable to a known good wave.

I confirmed continuity from ECM to injectors while following a pin point test, next step says "replace ipdm". That does not seem right when looking at the wiring diagram though. The ipdm supplies the power to injectors, not the ground pulse. I have power.

Vehicle will run if we add fuel to the intake while cranking.

I feel like the immo is disabling fuel injection.

What am I missing?

svenin53
10th May, 2024, 03:39 PM
wats immo status in ECM?