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1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on
vehicle came in with p0131 o2 volts low, 171 and 174 lean b1/b2. found b1 sensor unplugged. plugged it in, scanned, found lt trim b1/b2 +20% idle and +5-7% at 2500rpm's. maf read 4.6 KPa at idle. smoked system, found iac and pcv actively leaking. replaced maf,...
FIX posted 11/24/2009
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Related Documents & Media | VIN | 1FMRU17LXX |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1999 Ford Expedition Eddie Bauer
| VIN | 1FMRU17LXX |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video