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1989 Jeep Wagoneer, HO2S Waveform
Depending on the load and speed this vehicle would pass NOx, but fail CO. At times it would pass CO, but fail NOx. A new oxygen sensor produced the waveform on the right.
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| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Good |
Vehicle Data
1989 Jeep Wagoneer Limited 4.0L
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Good |
Video