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Does anyone know the correct idle RPM for a 2002 ST4s? It's been running at 1000 or below and then the stealer changed the ECU and made some "adjustments". Now it starts great but idles around 1200-1500 even when it's warm.

Does anyone know what the correct setting is?
 

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Does anyone know the correct idle RPM for a 2002 ST4s? It's been running at 1000 or below and then the stealer changed the ECU and made some "adjustments". Now it starts great but idles around 1200-1500 even when it's warm.

Does anyone know what the correct setting is?
Check the adjustment of the fast idle cam at the throttle body. 900-1000 is ideal.
 

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Typically it's around 1200 rpm. Not because it won't idler at slower speeds, but at 1200 you'll get more oil flow to the heads.
 

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Mine idled around 900 or so when I got it and it would stall occasionally so I had it bumped up to 1100 and was a huge improvement. I'd definitely stay above 1000.
 

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I set mine to 1100 RPM's after syncing the throttle bodies.
 
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