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1998 GMC K1500 Sierra SL, ECM/Inputs/Outputs Waveform
orange number 1 inj volts, green est, purple ckp , red = coil current for all 8 injs. Notice there is a problem with inj amps .Also notice there are 7 ckp pulses between inj volt turn on.
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| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 5-speed StandardTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Bad |
Vehicle Data
1998 GMC K1500 Sierra SL 5.0L
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 5-speed StandardTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Bad |
Video