can't keep idle speed with skunk2 stage2 camshafts

[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

[Gacky]

I use stock cam gear. I recheck valve timing and valve CL, they're OK.

[Spunkster]

Do a datalog from cold start with only idling and continue datalogging until the problem starts.

[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.

[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.

[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.