2 week ago engine started fine on ECU 1 -RPMs good, Fuel pressure good, fuel flow high
Yesterday engine would not start on ECU 1, engine cranked fine, tried to start but would not.
Today engine would not start on ECU 1 but started fine on ECU 2. All engine parameters normal. switched to ECU 1 and
engine ran but no RPMs, switched ECUs off and engine ran fine. Shut down after taxi tests by turning off the high pressure
What would cause the malfunction of the ECU 1 and how do I correct the problem. I could renumber the ECUs, and operate
okay, but that just ain't right.
Any help would be appreciated.