Okay heres the story. My car had mad idleing problems, when I would drive and put the clutch in the idle would drop below 750rpms and almost die out. Okay so a bunch of people told me to change the ISC (Idle Speed Control). I did and it idle well but it goes up to 2000rpms when the cars gets warmed up. But when it does idle at 900rpms, it sounds like Im running on 3 cylinders. Pls help. :headache: :headache: :headache:

What do you have for a blowoff valve, and is it vented?

stock BOV...

Does it still blow back into the intake before the turbo or is it vented to the atmosphere?

Vented BOV, other intake leaks, BISS screw misadjusted, missing BISS o-ring, alot of things can cause idle problems.If you are local, I'd recommend having an experienced DSM'er check it out, and your turbo problem as well.

Yes get it check out by someone who knows what there looking at. Saves time and money.

~John

Make sure the spark is good too. Cap, rotor, plugs, and wires should be checked. I had big problems for a long time because one of my wires never connected 100% to one of the plugs, so i ran 3 cylinders.

The clutch technician wants you to check the cap and rotor on your car with no distributor. Go figure.

...shut up :razz2:

I'm used to the G54B, not the 4G63. Long live TORQUE

Kougar http://209.173.220.82/ani/moon.gif

As far as the problem goes, if you are not having ignition problems at higher RPM, I wouldn't waste time looking for it at idle. Check everything eric(LightningGSX) mentioned, after that, go throught he BISS adjustment while grounding the appropriate plugs then check your base timing while you are there.

Thx guys I'll go and bring it to a dsm expert and see the real problem, Thx alot guys for the help

You want to adjust isc when car is warmed up or ideally on warm day. Must adjust isc (biss screw) correctly. I set at 1000 with dsm link and my crazy cams. I know I explained on later thread and I talk too much. Reply to me or contact if you want me to help and live in MN, otherwise I wish the best and hopefully get corrected. ;)