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1994 Chevrolet C1500 Cheyenne, Emissions Waveform
Compression wave form with a pressure transducer. Cat is plugged. Notice the hump at 80 and 160ms is exhaust stroke above 0 psi trying to push against exhaust pressure. Sorry for the car selection at the bottom of the scanner screen.
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| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Emissions |
| Component | |
| Condition | Known Bad |
Vehicle Data
1994 Chevrolet C1500 Cheyenne 4.3L
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Emissions |
| Component | |
| Condition | Known Bad |
Video