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1993 Jeep Cherokee, CKP Sensor, Ignition - Primary Waveform
Missing coil control. CKP and coil voltage when Jeep was running bad. It also was causing erratic injector firing and was shutting off the ASD relay. Notice the partial grounding but no firing of the coil.
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| VIN | 1J4FJ78S4P |
| 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
1993 Jeep Cherokee Country 4.0L
| VIN | 1J4FJ78S4P |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Bad |
Video