IAC valve- idle thingy.....

Before i go to Brown and Gammons and spend £50 of my hard earned, does anyone have a new-ish one of these ?

Well i changed it for a brand new one and its still the same, idling at 1800-2000.

Any ideas ?

Assuming you've done the reset rigmarole, have you checked the throttle cable is letting the throttle quadrant return fully?

Indeed the butterfly is closing, i am starting to suspect the throttle position sensor.

However having already spent £50 today i dont want to spend another £50+ on an off chance.

PM sent to you with an offer you cant refuse lol

paulsmgf wrote: PM sent to you with an offer you cant refuse lol

Your right i can't refuse that, you are a scolastic supertrouper.

Watch that Paul he's really useful a bit like the betterware and Avon lot... Mepmepmep

lol Ben actually i can supply you with avon too

daleyboy wrote: Indeed the butterfly is closing, i am starting to suspect the throttle position sensor.

when i changed my throttle body to a 52mm, i had high revs too. i kept doing the reset but it didn't work. eventually stripped it all back off to find i hadn't plugged in the TPS plug back in. once in - never had another problem with it.

consettphil wrote:

daleyboy wrote: Indeed the butterfly is closing, i am starting to suspect the throttle position sensor.

when i changed my throttle body to a 52mm, i had high revs too. i kept doing the reset but it didn't work. eventually stripped it all back off to find i hadn't plugged in the TPS plug back in. once in - never had another problem with it.

If i can rule out iac valve, then it has to be either the tps or a lambda sensor or just bad wiring.

The revs are quite steady just steadily high, i know i need new ht leads but doubt its to do with that.

I tried disconnecting the tps but all it did was drop the revs by a couple of hundred, this is a bit of a nightmare so far.

daleyboy wrote:

consettphil wrote:

daleyboy wrote: Indeed the butterfly is closing, i am starting to suspect the throttle position sensor.

when i changed my throttle body to a 52mm, i had high revs too. i kept doing the reset but it didn't work. eventually stripped it all back off to find i hadn't plugged in the TPS plug back in. once in - never had another problem with it.

If i can rule out iac valve, then it has to be either the tps or a lambda sensor or just bad wiring.

The revs are quite steady just steadily high, i know i need new ht leads but doubt its to do with that.

I tried disconnecting the tps but all it did was drop the revs by a couple of hundred, this is a bit of a nightmare so far.

Have you reset the Throttle Position Sensor ?????

Indeed Sir maybe a dozen times in the vane attempt of fixing it.

There is also the fact that the car just doesnt pull as well as it should, i gave it an italian tune up tonight and the car started missing, i know there may be a link with lack of a recent service (ht leads and spark plugs). I am not familiar with this car having only had it for a week but its performance is mildly uneven, like it has a fault but i don't know precisely what it is. I have downloaded digimoto to try to get to the bottom of it but i only have a vag-com cable which appears to be incompatible, can you point me in the right direction of a compatible lead ?

The car is leading me down the garden path, but thanks for your help.