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2003 Ford F-150 King Ranch 5.4L MIL Lamp on
Posted to Ford Driveability on 5/3/2012 9 Replies

Came in for a mil light on. Code P0401 stored. Had no KOER codes.

I have made sure everything is clean in the way of passages. Tried a factory DPFE and apply sol.

It has 20 inches of vac. at sol. but will only apply 2 inches of vacume to egr valve during KOE...

9 Replies Received (View Replies)

  Related Documents & Media  2003 Ford F-150 King Ranch

 
Message Closed w/FIX

car Vehicle Data

2003 Ford F-150 King Ranch

VIN 1FTRW07L83
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0401EGR System Insufficient Flow Detected
P1408MAP Sensor Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2003 Ford F-150 King Ranch

VIN 1FTRW07L83
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0401EGR System Insufficient Flow Detected
P1408MAP Sensor Circuit Malfunction