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1987 Volvo 740, HO2S, Injector Waveform
This was taken from the green/wht wire in the two pin connector by the battery. The fuel system is not switching correctly. By adjusting the screw on the MAF, you can get the switching even, if the O2 sensor and other components are functioning.
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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 |
Vehicle Data
1987 Volvo 740 GLE 2.3L
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Bad |
Video