engine revs up and down on idle...

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vwrickshaw
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engine revs up and down on idle...

Post by vwrickshaw »

Hi, when i start my t25 in the morning the engine revs up and down...it does not settle even when warm..i ahve a 2.1 w/c engine...has anyone got any ideas of what area i should be looking at solving this issue..

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Aidan
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Re: engine revs up and down on idle...

Post by Aidan »

idle switch in the throttle body
air bypass valve operation
first things I'd check

vwrickshaw
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Joined: 27 Jul 2019, 15:34
80-90 Mem No: 16970
Location: london

Re: engine revs up and down on idle...

Post by vwrickshaw »

Hi, i have a 2.1 i engine....and it still revs up and down..any areas i should be looking at the injection system..

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maxstu
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Re: engine revs up and down on idle...

Post by maxstu »

Air being drawn in around elephant trunk. Or Idle Speed Control Valve? Check idle speed stabilisation unit behind off side rear light.
Make certain trunk is properly connect to AFM. Best way is to release airbox from sidewall clip. Then tigthen jubilee clip holding boot to AFM. Then reclip box back in place.


Check out Itchy link...
http://forum.club8090.co.uk/viewtopic.php?f=37&t=168798" onclick="window.open(this.href);return false;
MaxStu
1989 DJ 2.1 Auto Leisuredrive rusty bucket.
"Blissfully happy in your presence".

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