1800 16v revs idle at 2000 rpm ?

[406mcd]

got my clutch fixed now there is another annoying niggly thing when the car is cold starts and idles perfectly then once its up at operating temp it just idles between 1800-2100 rpms anyone have any ideas of where to start looking ? any help appreciated cheers kev

[teamster1975]

Few ideas in this thread Kev
Could be the temp sensor giving strange readings as well causing it to idle high...
Actually thinking about it, check that the throttle actuator is returning fully home

[406mcd]

UPDATE !!!!!
got another throttle housing etc with all the sensors cleaned the carbon off of everything looks like new but its a lot nippier on take off but still no change with the revs like i say when starting from cold idles sweet as a nut just when it gets hot to operating temp the revs sit between 2-2500 rpms and its really aggrivating me disconected the lambda sensor while the car was running that made it a 100 times worse so put it back on it has no problem whilst driving any other ideas to try ? cheers kev

[swiss]

Um... shagged ECU?

[mjb]

My suggestion is to go to Maplins and get some cold spray. It's an aerosol can that rapidly cools whatever you spray it on. Get your car exhibiting these symptoms then start spraying each sensor in turn until you find what it is

[406mcd]

found the map sensor took the plug off idle drops down to 1000-1200rpm does this mean my map sensor is duffed ?