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1994 Pontiac Bonneville, ECM/Inputs/Outputs Waveform
Posted to the Waveform Library on 1/23/2003

BLU = EST ckt 423 RED = 5 volt bypass ckt 424 GRN = 3x Ref signal from module ckt 430

Engine idling, EST dropped out then 7.85ms later PCM removes the bypass signal.

 

car Vehicle Data

1994 Pontiac Bonneville SE 3.8L

VIN 1G2HX52L7R
Engine3.8 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
ConditionUnknown

car Vehicle Data

1994 Pontiac Bonneville SE 3.8L

VIN 1G2HX52L7R
Engine3.8 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
ConditionUnknown