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1993 GMC Sonoma, Ignition Waveform
(GREEN) Distributor Hi Reference or RPM (BLUE) Ignition Control. The ignition control module ICM is bad. It is a cardone, go figure. The RPM signal is produced by the distributor and sent to the ECM. Then the ECM sends out signal for IC to take over. The ...
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| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 5-speed StandardTransmission |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Bad |
Vehicle Data
1993 GMC Sonoma 4.3L
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 5-speed StandardTransmission |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Bad |
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