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1991 Buick Century, FP Waveform
Posted to the Waveform Library on 2/15/2001

Before and after fuel pump current waves. The replacement pump is the lower waveshape approx 30 sec after startup prior to break in. The probe was a Fluke 80i110s set to 100mv/A. notice the difference in scaling between the two captures.

 

car Vehicle Data

1991 Buick Century Custom 3.3L

VIN 3GA4AL5NMS
Engine3.3 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle
DeliveryFuel Injection
SubsystemFuel Supply
Component
ConditionKnown Good

car Vehicle Data

1991 Buick Century Custom 3.3L

VIN 3GA4AL5NMS
Engine3.3 L / 6 cyl / GAS
Trans4-speed AutomaticTransaxle
DeliveryFuel Injection
SubsystemFuel Supply
Component
ConditionKnown Good