recently my cossie has bee idlign well high aboout 1600

simon at secs gave me a few things to try which i have and whether the ISCV is plugged in or not it idels at same level

woudl this indicate it is stuck open and is fooked ?

 

If you unplug the idle valve and it still idles high,
the valve is either stuck open or you have an air leak or the throttle is not
closing fully or the air bypass screw on the throttle body has fallen out.

Has to be one of the above !!!

 

i uplugged the iscv and nothing changed

ive just removed it how do u clean these things

the spring in mine moves fine up and down if i push it with a toothpick motion is smooth ting

will try a mates iscv 2morrow see if it makes any difference. i rebuilt my inlet when i reshelled car renewed all gaskets i have checked there all still tight and all the sensors and bits sticking out of the inlet are also

 

What about this bit Craig?

 

It won't be the ISCV with rev's that high

more likely to be gasket missing from inlet or plenum.

 

Ding, mine aint a cossie, but has a cossie iscv, and idles at 1800rpm easily with the iscv at only 40%

 

gaskets are all new only few thousand miles ago cant hear any air leaks

screw seems ok steve

 

should the car not stall when you disconnect the iscv?

 

not necessarily, not even if there is no other problem. the iscv is only there to raise the idle above a base speed when the engine is cold or has a load on it (plling away without throttle) or high electrical load.

when warmed up a little, and hopefully even when cold it should still idle without the iscv connected, albeit possibly at a low speed. if it doesn't, the throttle plate is closing too far or the air bypass is too small and the base idle needs setting up.

 

i wanted to get all these nigly little things sorted before igo see karl

gonna try a new iscv if it makes no difference see what he says