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2001 BMW 728 Repair Question


Topics covered: Engine, Computer test, Exhaust.
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
Avatar Asked by jinyfoot

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

Tiny Answered by ASEMaster6371 (expert)
24,854 answers provided
Replied on January 9, 2013

No return?

Tiny Answered by Dr. Hagerty (expert)
9,669 answers provided
Replied on January 10, 2013

Thank you all

Tiny Response from jinyfoot
6 questions asked

Replied on January 10, 2013

And bless us all, everyone!

Tiny Answered by Dr. Hagerty (expert)
9,669 answers provided