Slightly high idle

[Ash1388]

U got a 2000 is200se and just wondered if anyone has any ideas what could cause a high idle on these? Its ticking over just over 2000rpm and does sound a bit high to be honest 

Any info will be awesome 

[Texas]

Is this even after it has got upto normal operating temp? If so it could be an un-metered Air leak, as in a leak after the air flow sensor and the ecu can’t control it. Spraying some volatile spray ( ie EasyStart) around any suspect hoses/connections while the engine is running may indicate the location as The revs will increase when the spray gets entrained. Obs do this at your own risk! 

[Ash1388]

Thanks for your reply, it's as soon as I start it then when it gets up to temp it will settle down a bit 

[ColinBarber]

1500 rpm is normal when cold, around 700 when hot. Has your Battery been disconnected, somethings it takes a while for it to learn the idle speeds and ideally needs to be driven, with stop start driving to learn quickly.

Otherwise your throttle body may be in need of a clean.

 

[Pahino.IS200]

either you have an air leak as mentioned before or the tps is out of position making the iddle go high, that happened to me and it was because of the TPS so you could check that out.