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1997 Geo Metro, Injector Waveform
Posted to the Waveform Library on 11/13/1998

This is an example of how a scope waveform can fool you. This was NOT losing ground. The injector or injector wiring (inside TB) was opening up and causing the B+ side of the circuit to drop. The image gives the impression that the PW is about 50ms. In reality...

 

car Vehicle Data

1997 Geo Metro 1.0L

Engine1.0 L / 3 cyl
SubsystemFuel Supply
Component
ConditionKnown Bad

car Vehicle Data

1997 Geo Metro 1.0L

Engine1.0 L / 3 cyl
SubsystemFuel Supply
Component
ConditionKnown Bad