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1998 Ford Expedition, MAF, TP Sensor Waveform
The blue trace is the TP sensor. The green trace is the MAF sensor. The TPS measured .86 volts at idle and 4.69 volts at wide open throttle. The MAF sensor measured .86 volts at idle and 3.69 volts at wide open throttle. The second shot shows that the MAF sens...
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| VIN | 1FMRU17LXW |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Good |
Vehicle Data
1998 Ford Expedition XLT 5.4L
| VIN | 1FMRU17LXW |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Good |
Video