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2003 Pontiac Grand Am GT, ECM/Inputs/Outputs Drawing
Posted to the Waveform Library on 3/19/2020

cranking with no injector pulse then starting on propane and injectors start firing

 

car Vehicle Data

2003 Pontiac Grand Am GT 3.4L

Engine3.4 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component

car Vehicle Data

2003 Pontiac Grand Am GT 3.4L

Engine3.4 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component