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1989 Volvo 740, Injector Waveform
Shows power supply voltage drop as injector is turned on. Injector pattern looks good and no problem would be expected but not enough current was flowing to operate the injector all the time. A DVOM on the supply would not neccessarily pick up the voltage drop...
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| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |
References
Vehicle Data
1989 Volvo 740 GL 2.3L
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |