
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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Message Closed w/FIX
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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) |