![]() There's less info about 29F3 but what little I can find suggests its the sensor itself that is faulty, rather than a sensor detecting something else abnormal. Not an entirely satisfactory explanation but at least half reassuring. A quick search suggests that 2AAF is a fairly common code in both stock and modified engines, has no effect and can safely be ignored. N54tech is a decent source of information about this motor. ![]() Has anyone had these codes with engine/drivability issues and, if so, what was the fix? Has anyone out there had these codes come up with no apparent engine/drivability issues and did you manage to permanently clear the codes? They're all expensive parts so, fixing by a process of elimination is not preferred. Probably due for replacement and something there is probably causing the codes. LP pump, filter, pressure regulator and low pressure sensor are all original AFAIK. It seems the official BMW fix would be to diagnose the LP fuel system "using the appropriate ISIS test module". EKP module (LP fuel pump controller) had no faults.Ĭodes were cleared and will be re-read in a couple of weeks to see if they reappear.hopefully they won't. Codes that came up were 2AAF (fuel pump plausibility) and 29F3 (fuel low pressure sensor electric). Just had the service intervals reset and codes read at my independent service place. ![]() No surging, misfires, hesitations, or warning lights etc. PO (I think) used an E85 mix on some occasionsįuel injectors replaced at 50,000 km in 2011 JB4 fitted by PO but on pass through (and has been since I've owned it) ![]()
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