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2004 Subaru Forester X, Emissions Waveform
This is the pulse-width modulation of the ground signal to the heater of the upstream air/fuel sensor, during idle. The timebase is 100msec/div.
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| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransaxle (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Emissions |
| Component | |
| Condition | Known Good |
References
Vehicle Data
2004 Subaru Forester X 2.5L
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransaxle (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Emissions |
| Component | |
| Condition | Known Good |
Video