FD idles at 3000 rpm

[chrisyerkes]

I am having a problem with my FD as it idles at 3,000 rpm any answers?

[marco]

check the manual adjustment screw hasnt come loose and wound down due to the vibration whilst driving.

[chrisyerkes]

Yep I checked it and it is all the way up as not to have any pressure on it. Could it be the idle control valve?

[leon]

Idles at 3k warm or cold?

Three things jump to mind:
-If the car is cold it will idle at around 3k as this is the accelerated warmup system, after this point it should drop down to normal revs - unless this sytem has become none functional in the "on position" not sure if thats possible though.
-Throttle cable wrongly adjusted, or pedal stuck etc
-Throttle butterflys not closing.

Have you been doing any work on your car before it started happening.

[DR SCHNITZEL]

the little screw at the top front of the throttle body, wind this away from the lever and it may sort your probs out, it needs a nut on it to keep it still too. mine barely touches the lever (1 wind or so)

[chrisyerkes]

I put a turbo timer on it and after a couple of weeks it started idling at 3,000 rpm cold. I will have to check the throttle body to see if it is getting stuck open. The screw isnt even toucking the lever, that was the first thing I thought it was.

[ianelvar]

I think you\'ll find it\'s the the warmup wax valve which moves a little cam and knocks the throttle plates open a crack until warm. You\'ll see it on the back of the TB just under the throttle position sensor. Got a little screw with a spring around it, you can\'t miss it. Push it down and I\'m sure you\'ll find the revs dropping.

[ianelvar]

Did you get it sorted chap?

[chrisyerkes]

Yep I figured it out, it was the screw underneath the TPS sensor. It def helped out now it goes back to the MOT. Thanks guys much appreciated.