Ive got a saff cossie 4x4 and the engine has been idling crap for a few months now.It normaly idles at over 1000 rpm.When i disconnect the idle speed contorl valve it idles at about 7.50/8.50rpm.I know the revs will drop when the iscv is unplugged.Does the base idle need setting up.Sometimes when i im warming my car up on a morning before i go to work the revs go up and down a few times every now and then.Do i have a faulty iscv.Ive cleaned the valve out many a time too and lubed.Any help would be great people.

 

Mine does it glenn only does it for a few seconds wen a first start it up,just thought it was normal,think thing wi sitting over 100rpm,mine sits exactly on 1000rpm thought it had to de this to keep the oil pressure up

 

Think you just need your base idle setting up mine was the same,

 

Get the car warm and set your base idle to about 950 rpm.
The fact that the revs go up and down shows the valve to be working as it is this that is causing the differing idle, this can however be made a lot worse by lean mixtures, so a co check would be a good idea.
tabetha

 

my 2wd does the revs up and down two or three times b4 settling bang on 1000rpm,my bro's had your problem and he had to have the vavle changed and a full setup and co check

 

check tps signal and settings,
check ect sensor and resistance against temp
check ecu voltage,
check base idle when hot,
check fuel pressure/co and adjust according to your tuners instructions,
pressure test inlet, and rectify any air leaks.

failing that, speak to your tuner about a different idle strategy

 

I know my fuel mixture is a bit rich.Whats the best way to set the base idle then.

 

best way is to pop in mate ill do it for you for free

 

I have seen the screw under the throttle body.If i find time i would pop through.Is your garage easy to find then.

 

easy enough snowdon rd middlesbrough

 

have to do it warm and ill check all the senssors and gaps and clean the idle valve

 

It might have to be on a weekend or less your still at your work after 5 at night.

 

after you have set your base idle if your idle goes up and down after you plug your iscv back in,you need to set your tps up!

 

im there tomorow mate

 

Your always bloody there, hope its not too long before you can get normal finishes mate or you'll burn yourself out. Plus you need to find time to start training again.

 

Im busy tomorrow ive got a bloody christening to go to.