I have a 2004 5.4 4x4 lariat f150 55,000 miles newer body style. The truck has knn fipk kit, ud pulleys, dynatech LT headers, magnaflow exhaust and a custom tuned gryphon. I have been running the tune and headers for a good 4 to 5 thousand miles with no problems. Today my check engine light came on and my gryphon gave me two codes p0054 heater resistance bank1 sensor 2 and p0138 oxy sensor circ hi volt bank 1 sensor 2. If anyone has any ideas please let me know. thanks

 

2004 f150 fx4 .I have the same problem w/mine .It stared w/p0054 trouble code.Changed bank 1 rear 02 sensor .Did nothing came right back.Now I have p0138 trouble code. Any one help?

 

HELLO anyone there?

 

HELP !!!!!!! Have engine codes P0012 , P2196 , P0174 , P0300 , P0301, P0302 , P00303 , P0304 and P0316 . WTF ????? Anyone tell me where to start or how to start ?????

 

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Search engine ??? What does that mean ??? Changed fuel filter today idled smoother still smoking on start up . cel is NOT flashing but on steady now . only reads code P2196 o2 sensor rich bank 1 sensor 1 ..... Which one is that ??? Thanx.

 

Use the search engine at the top of this page to search for those codes.