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2002 Ford F-150 XL 4.2L Surge, Poor Fuel Economy, MIL Lamp on
Posted to Ford Driveability on 10/17/2012 14 Replies

Vehicle came in running rough at times with lean codes. Customer had already installed new upsteam o2s, maf, iac valve and intake gaskets with new bolts/isolaters. STFT both banks max out to +33%, at idle and no change off idle(1500rpm+), indicating no vacuum ...

14 Replies Received (View Replies)

  Related Documents & Media  2002 Ford F-150 XL

 
Message Closed w/Summary

car Vehicle Data

2002 Ford F-150 XL

VIN 1FTRX07232
Engine4.2 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsSurge, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction
P1151Fuel Rail Pressure - Maximum Positive Deviation
Message Closed w/Summary

car Vehicle Data

2002 Ford F-150 XL

VIN 1FTRX07232
Engine4.2 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsSurge, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction
P1151Fuel Rail Pressure - Maximum Positive Deviation