When I drive the car around and let off the gas the rpm's stay at about 2500-3000 rpm's for almost 25 seconds and then the idle drops down to normal.
I thought it may have been from a vacuum leak but the pressure test came back with no leaks at all. The just installed a rebuilt TT throttle body with all new seals and adjusted to spec. IAC and TPS all tested fine.
So I looked at my log files and noticed after I let off the throttle the IAC steps stay between 85-89 then they suddenly drop after 20 seconds.
Anyone have any ideas what would cause this type of behavior? it is really annoying as when ever I stop at a light or stop sign the car sits there at almost 3000rpms and finally drops back to idle.
here is the log file and I have the occurance highlighted in red:
http://3s.gonzoinc.com/albums/userpi...3_16_45_31.xls
I can't seem to figure this one out!!!!!!
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