|11-16-2012, 10:09 PM||#1|
Private First Class
Drives: 2009 X6 50i, 2011 335i xdrive
Join Date: Nov 2009
Power/Torque Loss: PCV Issue? Dinan Stage 2 Issue?
I have a 2009 X6 50 with Dinan Stages 1&2.
I as never super impressed with Dinan Stage 1. It did little to solve the turbo lag problem, whether I drove it in Drive or Sport mode. Manual was fine enough. Anyways, was fun enough on the track.
This summer I had Dinan's Stage 2 installed. Wow, turned a decent monster of a car into an F-22!! Well, not for long. I got a misfiring plug pretty soon after - I was grounded. Replaced all of the plugs. I even asked them to confirm that the Dinan software had neem reinstalled. Here is the TSB for the plugs problem.
TSB Number: SI-B12-22-09 NHTSA Number: 10031664 TSB Date: September 1, 2009
A few weeks later I got a low oil light. The impact of the Dinan software was also gone. Went in for a free quart, which the dealer recorded in their system. Drove for about 3 more weeks and the car called for oil again. This time it stayed with the dealer who diagnosed a PCV valve problem, for which there is also a TSB:
TSB Number: SIB-11-03-08 NHTSA Number: 10038217 TSB Date: December 1, 2010
Dealer said that there was an oil leak as a result of the PCV issue.
Here we are 3 weeks later and again the power/torque is gone. Oil is down one out of three notches on the oil check sensor. I know the power/torque is down because with Stage 2, acceleration is instantaneous and does not require a drop down in the gears in auto modes. When the Dinan 2 is operational, the power is instantly available, even at low RPM. Now the transmission drops down and the power lags.
Anyone else have any ideas, experience, thoughts?
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