what should my car be idling ,cold start, then warm up. i searched and got alot of different answers. right now it idles at 1000, then only kicks down to 800! still sounds too high.

 

My cars pretty much totally stock right now and I only idle at maybe 500rpm. So yeh that does sound a little high.

 

upon cold start, the rpms on mine are 1200-1500, and slowly drop over about a minute to around 1000. Once I put it in gear, it drops to 800

Once the engine warms up, idle in gear is right at 500, 800 in park/neutral

 

Doesent sound horrible. If it really bother you, you can get the EBL flash computer [dynamicefi.com] because I know it has a different warm up routine for the computer [soon as you start it it doesent rev up too 1000, it just gets to its normal warmed up rpm] if you want to be cheap, you could try seafoam.

 

I would pull the IAC and do a cleaning of it along with IAC passage in TB.

 

I agree, my tbi motor is mostly stock and I'm running 1500-1800 on cold start up, and when the engine is fully warm it usually idles around 500-600 rpms