Quote:
Originally Posted by Mdawood
Quote:
Originally Posted by CarJunkie
Sounds like misfires, and the culprit could be injectors, HPFP or both.
Do you know if your injectors were ever replaced?
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Injectors never replaced. Would that throw a misfire code? |
A lot of guessing going on so I'll join the party as well. : )
My guess is hpfp because you say it happens at WOT. Fuel injectors usually clog or leak and cause issues with idle. You don't mention if you have a tune which could be a significant variable. You mentioned third gear as well. Was this a high rev high load WOT or a low rev high load pull? Our cars trigger an overboost at WOT in low rev and high load. Usually this is when you are in 6 th cruising and you go WOT high load. This is what kicks over boost in which will require additional fuel. If you are power shifting at redline in 2nd to 3rd then that is a high rev high load situation . So you are either not getting enough air... boost leak from boost pipe Inter cooler etc or you aren't getting enough fuel. If you've checks the boost pipes for leaks or damage then fuel system could be having an issue. Fuel pump or regulator could be the issue. But I think in this case I might quote my father in law. He says he has 4 tools in his toolbox. A screwdriver, pliers, hammer and checkbook. If he can't fix it with the first three he uses the checkbook. This might be appropriate now and pay a diagnostic fee at dealer or bmw specialized independent. They have special equipment that can identify pump issues or you might find yourself replacing a lot of parts guessing. Whatever happens please let us know what you find out! Sorry this happened to you.