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1991 Chevrolet R3500 Cheyenne, Vacuum/Pressure/Flow Waveform
Upper Images are cylinder #1 pressure, 1mv/ psi. Lower Images are TPS voltages. Sequence; Idle, 1500 Rpm, Idle, then a snap WOT near the end of the trace.
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| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Engine/Propulsion |
| Component | |
| Condition | Known Good |
References
Vehicle Data
1991 Chevrolet R3500 Cheyenne 5.7L
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Engine/Propulsion |
| Component | |
| Condition | Known Good |
Video