
1993 Chevrolet K1500 Silverado, Ignition Waveform
![]() ![]() A glitch in the REF HI signal is corrupting the EST signal, causing the stumble. Not sure if it's the ECM or distributor pickup.
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Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed AutomaticTransmission (Electronic) |
Delivery | Fuel Injection |
Subsystem | Ignition |
Component | |
Condition | Known Bad |
Vehicle Data
1993 Chevrolet K1500 Silverado 5.7L
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed AutomaticTransmission (Electronic) |
Delivery | Fuel Injection |
Subsystem | Ignition |
Component | |
Condition | Known Bad |