BMW Car Club Forum Homepage
The BMW Car Club
of Great Britain & Ireland
Forum Rules
Contact Forum Admin
Join the Club
Forum Home Forum Home > Cars & Registers > M Power
  New Posts New Posts RSS Feed - Engine not returning to idle
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

 

Engine not returning to idle

 Post Reply Post Reply
Author
Message
Robert View Drop Down
Club Member
Club Member
Avatar

Joined: 15 Aug 2006
Location: United Kingdom
Status: Offline
Points: 105
Post Options Post Options   Thanks (0) Thanks(0)   Quote Robert Quote  Post ReplyReply Direct Link To This Post Topic: Engine not returning to idle
    Posted: 12 Sep 2020 at 1:39pm
I have an E30 M3 that is having trouble with the idle control.

When you rev the engine a bit it will then stay at around 2000rpm for about 10 to 15 seconds before settling back down to a slightly higher than it should idle of 1000 to 1100rpm.

I have had the ECU refurbed and replaced the ICV (Idle Control Valve). In all other respects the car is running fine and the economy is good.

If you unplug the ICV when the engine is running and doing it's idle at 2000rpm it will immediately return to idle OK but around the 1000 to 1100rpm mark.

I have also replaced the short section of hose leading from the top of the ICV to the distribution piece where the idle screw is.

Am I right in thinking there is still an air leak somewhere or can it be a poor electric cable?

Rob.
Back to Top
Sponsored Links
BMW Car Club Forum Homepage

Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.172 seconds.