I have a head scratcher! Hoping the community can give me some pointers! I have an X3 E83 2.5i with the m54 engine. Currently my car drives like a slug! Max speed 45 mph and forget going uphill. It does start and tick over fine but when driving it won't rev passed 3.5k revs and takes about 10 mins to reach 40mph. If I try to push it the car limps and I get eml light on. Switch off and on again and the light goes away! I scanned with INPA before the eml comes on and no codes generated. I managed to scan when the car was in limp and I get codes for both cam sensors, the exhaust vanos solenoid, axillary air blocked. Restart the car and codes go away??? Not sure what to change first, any suggestions?
