2001 BMW 728 Repair Question
Topics covered: Engine, Computer test, Exhaust.
Mileage: 90,000 miles.
Mileage: 90,000 miles.
Asked on June 25, 2012
Slow engine reaction
Hello again I HAVE A problem with my engine when driving on speeds over 120kmph and going down to 80 the car speeds up slowly its reaction is slow this happened after replacing oil i used to use mobil 1 5/30 but this time I USED LUEQY MOLI 5/40 IT SEEMS THAT THE CAUSE IS the CPS or MAF but the computer test shows no error codes and the engine is harsh could it be the oil and if it is does it affect the engine ( the car accelerates slowly and when you push hard the rpm stays the same and suddenly rises )
thank you
thank you
Answer
Replied on June 25, 2012
no, not the oil at all.
i would look at fuel pressure.
i would also look at the back pressure in the exhaust for a clogged cat converter
Roy
Replied on January 10, 2013
And bless us all, everyone!