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1987 Jeep Cherokee, ECM/Inputs/Outputs Waveform
1987 Jeep Cherokee 4.0L -- Red is CKP (on the violet wire), green is the timing signal from the PCM to the ICM, and blue is a pressure transducer in cylinder #3. This capture is taken with the engine running on an ignition box. Notice the change in the timin...
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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 Bad |
References
Vehicle Data
1987 Jeep Cherokee 4.0L
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |
Video