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can't keep idle speed with skunk2 stage2 camshafts

Posted: Sat Aug 16, 2014 7:56 pm
by Gacky
Problem about idle speed control.

I have installed skunk2 stage2 camshafts but my car can't keep idle speed after warm-up. It's OK before warm-up.

I think TPLATE is too low in idling. It's idling when I open gas pedal a little. How can I open TPLATE in idling? Is there some learning program?


F22C
stock TB
mugen intake
stock header
F20C stock cat

Re: can't keep idle speed with skunk2 stage2 camshafts

Posted: Sat Aug 16, 2014 8:51 pm
by Gacky
I use stock cam gear. I recheck valve timing and valve CL, they're OK.

Re: can't keep idle speed with skunk2 stage2 camshafts

Posted: Mon Aug 18, 2014 2:40 pm
by Spunkster
Do a datalog from cold start with only idling and continue datalogging until the problem starts.

Re: can't keep idle speed with skunk2 stage2 camshafts

Posted: Tue Aug 19, 2014 9:00 am
by Gacky
The problem doesn't occur with only idling from cold start. It comes when I touch a gas pedal.

Please see the attached file. I started the engine from cold start, keep idle for 15 minutes with no electric load, and stall when I open a gas pedal. The attached file doesn't contain all datalog, last 5 minutes only. Sorry.

Re: can't keep idle speed with skunk2 stage2 camshafts

Posted: Tue Aug 19, 2014 4:35 pm
by Spunkster
You might want to talk to Skunk2 and see fi this is something they have heard of before as I cannot see a reason for it in the datalogs.

Re: can't keep idle speed with skunk2 stage2 camshafts

Posted: Sat Sep 06, 2014 9:25 am
by Gacky
Thank you for the reply, Spunkster.

I could find out the reason. The issue has been caused by the dirty TB. I can keep idling with another clean TB.