well first post and would have to be something potentially bad :P
got the car a month ago, after turning 20 noticed insurance suddenly allows for better cars :P. its my first bmw and so far its been great just having a bit of a problem.
when i got the car it had been sat for a long time and was running well considering this so decided to run it for a bit to make sure it wasn't just coked up. it improved a lot but still wasn't great so had a look around and found a lot of vacum hoses had split around the egr valve area, replaced them and all was good for a bit then went rough again. noticed the crankase breather was all falling apart at the back of the engine. so ordered a new hose and breather valve, but after this has gotten no better.
the main problem apears to be at cold when the anti pollution pump is doing it's thing
the codes which keep coming up are as follows
171 - (written in German)
141 - something to do with lamda probe (both read fine in inpa though :S)
after all of this i decided to look at the live readings in inpa to see if anything could be seen in there.
here are the results (screen shots were taken at idle).
there are 1 or 2 readings which are off the scale on the readout which must be a problem for the car, some of them being the
load (of what ? :P),
and the pulse duty factor i.s controller.
I am not sure what these readouts relate to but these must contributing to the problem.
I,m trying to get it running right asap because I want to get an lpg conversion done to the car asap as i do 20k+ miles a year and i am planning on keeping this car till my insurance has come down considerably more than it already has
If anyone can shed any light i would be great full
another thing. would it be of benifit to reset the adaption in INPA after doing the work i have already done to it? just wandered if since it had to compensate for a lack of vacum it would continue to do so because of the adaptions ?