benreader

where can i find my idle control valve, its an escort rs turbo mk4?

its got running probs and im thinking this may be it?

KSA-Cossie

iTrader: (4)

Efi or mfi , if mfi you don't have one you have an auxiliary air device at the back of the inlet manifold it has a black plug attached to it iirc .

benreader

yeah its an mfi head. the car is idling too high (around 2000rpm) and now its having problems around 5000rpm when giving a bit, the power seems to die out and won't progress past 5000rpm in 3rd gear, if you persist with your foot down the engine doesn't like it and makes strange noises, shift into 4th and it like there is still no power. thinking this may be a misfire, new plugs maybe?

benreader

can anyone shed any light on this for me?

GTechR

Sounds like the cold start valve sticking too me...

KSA-Cossie

iTrader: (4)

Boost hose collapsing ? Can't you turn the idle down using the throttle body screw ?

benreader

im just gonna give it a good going over this afternoon i think, check the plugs, leads, hoses etc...

who'd have an old car!!

GTechR

Try and disconnect the cold start valve, Its located under the throttle body on the inlet manifold.

DazC

iTrader: (1)

Those strange noises could be det. I'd take it to MSD seeing that you're in Blackpool and get the fueling checked.

It might be an air leak in the induction system causing it to idle high.

Coldo

If its MFi, there is a mixture screw on the metering head, to the left of where your airbox/cone filter is.

Needs an Allen key to adjust it, probably not reccomended without a proper set up however, as you will end up causing it to run lean/rich, which isnt good.

Take it to a tuner for a rolling road set up, usually about £60 or so

KSA-Cossie

iTrader: (4)

And well worth the money.

GTechR

I didn't read it properly... yeah it sounds like it's pinking. get it taken somewhere and get the fueling checked.