Need help

[minamassoud]

Hi guys,

I've been facing an issue and i need your help with it, sometimes while stopped in signals and shift the gear to N position, i can see RPM going up to 1 and again coming down periodically along with a small shake in the car, and this will happen few times before shifting to D and start moving.

Any suggestions!

Thanks.

[minamassoud]

Very informative guys ;)

[S.BAKI]

Hi [MENTION=188955]minamassoud[/MENTION] this happened to me in my E36 in the past, can't remember the exact problem but i think i was something to do with the a air leakage from a cracked pipe, not a big job, but gets annoying and is remembered to be fixe.

Contact one of our Sponsors, Im sure they will be able to resolve your issue. Once resolved please do let us know the issue.

[minamassoud]

Thanks S.Baki for the reply, will go to a workshop to check the issue and let you know.

[Shak]

Possible causes for your problem !
Fuel ratio incorrect due to following reasons.
1.Air Mass sensor
2.cyclone valve seal leaking
3 vacuum hoses to cyclone leaking
4.TC cover gasket leaking
5.Brake servo leaking vacuum side
6.Air Filter blocked.
These are the most common issue that I have faced over the years but then again it could be other iusse's.
This can only be diagnosed by a can of brake cleaner and a diganotic tool :)
hope this helps

[minamassoud]

Thanks Shak, this issue is not always happening but from time to time, i will take the car to a workshop for better diagnostics.