adam151082

Hi Guy's,

I've got a problem with my car. When i start it from cold it will hunt (rev up and down) and then cut out unless i drive it for 1-2 minutes and then its fine.

I've cleaned the ISCV and checked its getting power and all seems well.

Any ideas??

martysmartie

iTrader: (1)

I have the same problem, and it's always done it, which is annoying.

I think the valve is faulty, but it's hard to find the original ones and unless new, it's likely to have the same issue.

A few years ago, I got an aftermarket one, but this was worse than the original, as it run too fast, I figured the springs were not of the correct specification, but even messing around with them, it still would not work right and so I put the original back on.

Martin

adam151082

Can anyone shed any more light on this?

Mad_Mat

Is the idle 100% stable once warm? does it dip at all? If so then the main throttle body butterfly wants opening a touch to support the base idle speed with a touch more air.

bigdel

Mine's exactly the same. won't idle at all when cold, but after a minute with my foot on the throttle keeping it at about 700 - 1000 rpm, it's fine, if still a little lumpy. Once fully warm though, it idles perfectly.

Turbosystems

iTrader: (5)

Do not adjust the throttle stop screw the base idle is adjusted via the idle by pass air bleed screw

Sierrasideways

iTrader: (1)

Can't you get them new from GGR?

Mad_Mat

Thats what i meant. Yes do not adjust the butterfly it will put your tps out. ta Tone

ray barker

i bought an after market icv recently it works fine but my old one did all but stop. there is a procedure for setting the idle its not just moving the butterfly

3doorcozmess

my car does the oppsite.

starts up fine for a few minutes then starts to hunt then when really warm it's fine again

si