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1999 Chevrolet K2500, HO2S Scandata
Posted to the Waveform Library on 5/9/2005

this is a graph of both post-catalyst o2 sensors. the voltage signal is not as active as the front o2 sensors, this is normal and show that the catalysts are [...] at the floating scale, the sensor voltage is somewhat steady at 700mv.

 

car Vehicle Data

1999 Chevrolet K2500 7.4L

Engine7.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Good

car Vehicle Data

1999 Chevrolet K2500 7.4L

Engine7.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Good