I should have given some context. The Service Engine
Soon light had been on a while. My local mechanic
was not able to pin point the parts causing it. So I
took it to the dealer (Mountain View BMW, Bay
Area, California). He asked me to have O2 sensor,
MAF sensor, and the gas cap replaced. I only had
them O2 sensor replaced. Sometimes on-board
computer gets confused. However, the light came
back. I checked with my Actron unit and it showed
P0170 and P0173. That's when I replaced the MAF.
I have already driven about 60 miles and the light
has not come back, but sometimes when I am about
to stop the vehicle I feel a sudden "push" and have
to brake harder.
For all other questions you have mentioned I would
say no - I don't think any of that has been done.
I do, however, know there is a leak in valve cover gasket.
I am not sure if my Actron PocketScan Plus can do
the scanning for additive and multiplicative values for fuel trim.
Thanks for your response. I feel part of the X5
Sunday, August 31st, 2008 AT 1:12 PM