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1991 Ford Ranger, ECM/Inputs/Outputs waveform
Posted to the Waveform Library on 6/12/2008

KOEO On Demand codes pass-Continuous Memory Code 41 (EGO not switching)-first checked for vac leaks at intake manifold-none found-checked O2 operation-o.k. at idle, but flatlines at 2000+ rpm-here's the capture...

 

car Vehicle Data

1991 Ford Ranger Custom 4.0L

VIN 1FTCR10X6M
Engine4.0 L / 6 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

car Vehicle Data

1991 Ford Ranger Custom 4.0L

VIN 1FTCR10X6M
Engine4.0 L / 6 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad