[keltis99]

i got P0108 and P0171 obd codes on my F32 (2014) after changing my oil..which is strange in itself. the car does not drive a lot (at 36k km now).

trying to narrow down the issue and checking if my MAP sensor is faulty with various youtube instructions (code 108).

I established with the multimeter that the black wire is ground but both yellow and blue wires carry voltage (5v) so not sure which is signal and which is power. any advice?

i checked visually for the vacuum leaks but can't find any (code 171).

many thanks
xS