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2000 Chevrolet Blazer LS, ECM/Inputs/Outputs Scan Data
Posted to the Waveform Library on 8/28/2012

Checking for a bad MAF sensor, looking at short term fuel trims and rpm, notice the test is done during light cruise speeds at gentle throttle tip In's below 3000 rpm. While monitoring the graphed data pids if the Short term fuel trim is mirroring the RPM ...

 

car Vehicle Data

2000 Chevrolet Blazer LS 4.3L

Engine4.3 L / 6 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

car Vehicle Data

2000 Chevrolet Blazer LS 4.3L

Engine4.3 L / 6 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad