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1998 Ford F-150 Lariat 5.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on
Posted to Ford Driveability on 1/6/2015 24 Replies

Ok, after reading the repair history, the customer came back, saying that truck was running worse.

Scan data gave 4 codes. I had explained the last 2 times he was here that we needed to diag/repair the Fuel Pressure Sensor, because its reading a constant 5v. ...

24 Replies Received (View Replies)

  Related Documents & Media  1998 Ford F-150 Lariat

 
Message Closed w/FIX

car Vehicle Data

1998 Ford F-150 Lariat

VIN 1FTRX17L8W
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Misfire, MIL Lamp On
OccursCold, Hot, Idle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0303Cylinder 3 Misfire Detected
P0401EGR System Insufficient Flow Detected
P0453Fuel Tank Pressure Sensor Circuit High Voltage
Message Closed w/FIX

car Vehicle Data

1998 Ford F-150 Lariat

VIN 1FTRX17L8W
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Misfire, MIL Lamp On
OccursCold, Hot, Idle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0303Cylinder 3 Misfire Detected
P0401EGR System Insufficient Flow Detected
P0453Fuel Tank Pressure Sensor Circuit High Voltage