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1991 Pontiac Grand Am, Injector Waveform
Vin T engine ( all injector fire at once). Current ramp on all injectors. Ramp increase shows defective ( low ohms) injector or injectors.
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| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 3-speed AutomaticTransaxle |
| Delivery | Fuel Injection |
| Subsystem | Fuel Supply |
| Component | |
| Condition | Known Bad |
Vehicle Data
1991 Pontiac Grand Am LE 2.3L
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 3-speed AutomaticTransaxle |
| Delivery | Fuel Injection |
| Subsystem | Fuel Supply |
| Component | |
| Condition | Known Bad |