Hi guys,
I have Barchetta from 2001, M1 motor.
I read that the rev limit should be around 7150rpm, but I can't reach more than 4500 rpm. The car just brakes.
Anyone can explain why?


Thanks in advanced,
Michael

Is the ecu warning light on?

Hi,
thanks for your quick answer.
No, there is no warning lights. I named this topic "Engine cut off" but I meant that it is brakes. I don't understand why.
The last thing that was made with the engine is changing sparks and one of the spark-plugs.

Do you have any idea?

Regards,
Michael

Was it ok before you changed those parts?

plug leads on correct plugs and connected properly??

Hi,
I think so. I didn't do it by myself.
Thhe thing is that i can go to the service who did it for me, but I don't like to go there and hear bla, bla, bla ...300€. I want to understand what is this problem before I will go there.

In some cars it can be a protection if it senses something wrong, but then it should show the engine warning light/MIL.

It might be worth disconnecting the mass air flowmeter (MAF) and seeing if it works any better. This can cause problems like yours.