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1998 Buick Century, CKP Sensor Waveform
7x twisted harness shorted to ground and engine is stumbling till it stalls. The yellow trace is the 7x to ICM signal and it is losing amplitude until ICM can't pick up and thus the 3x signal to PCM is missing
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| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransaxle (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |
References
Vehicle Data
1998 Buick Century Custom 3.1L
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransaxle (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |
Video