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P0171 After Chain Replacement
Posted to Technical Discussion Forum on 11/21/2017 21 Replies

Ltft bank 1 10.9%. Consistent. Bank 2 ltft at 3.2%

Changed chains. Marks line up, but still have the code. Upper plenum changed, new pcv hose, new injectors, egr replaced.

I replaced the timing chains due to failed tensioners, lines it up off one tooth, ran ... Login to read more.

21 Replies Received (View Replies)

 

car Vehicle Data

2004 Lincoln Navigator 5.4L Rough Idle

Engine5.4 L
Trans4-speed Automatic (Electronic)
SymptomsRough Idle

car Vehicle Data

2004 Lincoln Navigator 5.4L Rough Idle

Engine5.4 L
Trans4-speed Automatic (Electronic)
SymptomsRough Idle