Z4-forum.com

So more trips to the dealer to find the cause of my N54 power drops during dct up shifts have found nothing. Since the injectors have been replaced it’s a whole different car with unreliable power delivery on partial throttle, multiplied much when cold started.

I’m therefore seeking some advice on what kit might be needed for me to login engine/data from the car in the hope I can produce graphs or data sets that might point toward a cause.