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1993 GMC Sonoma, Ignition Waveform
(GREEN) Distributor Hi Ref or RPM and (BLUE) Ignition Control IC. Known good ignition control module. The RPM signal is now good clean square wave even while cranking from approx 0-5 V. PUT ON GOOD PARTS!
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| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 5-speed StandardTransmission |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Good |
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 Good |
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