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1989 Chevrolet R1500 Suburban Scottsdale, HO2S Waveform
This was after the o2 was replaced. The new o2 passed all three of the o2 tests(high voltage low voltage and switch test) This is during cruise at 25 mph with a blocklearn of 127 and a failure of the vehicle emission test because of high HC (300ppm specs are 1...
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| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Good |
Vehicle Data
1989 Chevrolet R1500 Suburban Scottsdale 5.7L
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Good |