UKPOC forums

Hi all on from repairing the engine fire damage car now idles at 1250 rpm idle screw all way in (adjusted in test mode) changed MAF unit (thanks Malc) coolant is spot on now thinking throttle body may need cleaned .what is involved in this and any special things ineex to look out for (how do you clean the unit) cheers inavance rikki

are you 16 or 24v Rikki. They are different.

Hi Rikki
If you have set the base idle and TPS when up to temp(and linked out)
you may have a sticking IAC valve,if your gonna do the carb its an
ideal time to do it,just remember there is a fine rubber gasket under
neath it, I used carb cleaner on mine
Also check the throttle cable is returning to its stop

Hi CPT when in test mode as soon as you move throttle fans come on go off when release throttle .what is involved in cleaning the throttle body do I just spraywith carb cleaner and wipe clean can I use air pressure to blow through parts .

Hi Rikki
Wot is your base idle when linked out TPS is doing wot it should when linked
out,I would take the carb off complete 4 nuts( Remove Throttle cable first) then
Your see the gunk in the holes clean out with carb cleaner,then unscrew the IAC
And fill with carb cleaner leave to soak your be surprised at the crap that comes out
which stops the wax stat from fully returning

Hi idle goes to around 1000 rpm will take off throttle body and clean it and iac valve.cheers
Does cleaning normally work or should I get a replacment.

It usually cures the problem,if not it will lie in the egr valve but thats a different
thing to do,start the IAC first

Hi cleaned throttle body took iac valve off and tried some boiling water in it valve moves and moves back when cold water is poured in moves about 5mm is this about right as have it all back together and still 1200 idle any other ideas as what to do next cheers in advance.