S2000 Under The Hood S2000 Technical and Mechanical discussions.

Rough Idle after engine is warm

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Old Mar 18, 2007 | 05:35 PM
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From: AZ.& So. Cal.
Default Rough Idle after engine is warm

Today I started it (cold). It ran well while it was warming up. Once it got pretty warm it started sounding like a miss. The engine light started blinking. So I turned it off and restarted it. Still ran rough and then in a short time the engine light started blinking again. Then the VSA light came on with the VSA activation indicator. The electric power steering (EPS) is also on. Right now I only have a downpipe hooked up to the turbo with only one 02 sensor hooked up. What I think it might be since I don't have a scan tool is the car is running in some kind of safe mode thats why after it warms up it starts idling bad.

This is the second time I've ran the car since I installed the turbo kit. I ran it today to make sure there absolutely no leaks which everything looks good except for this rough idle. I may start it up later just to see if it idles good. I think it will but won't know till alittle later. Also while the car was running for about 7+ mins the radiator fans didn't kick on. Maybe it takes alittle longer for it to kick on but the car could've still been alittle cool. I'm pretty sure all the plugs and everything are hooked up. I didn't see anything that I could've missed. TIA.
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