Ok, maybe some of you have been following this but for those of you who haven't here is a run down:

If the car is rolling (even 1 mph) and I put the clutch in then the idle will usually (but not always) climb to 1,500 or 2,000 rpms until I stop. As soon as I stop the idle drops back down to 950 immediately. I checked for a vaccum leak and the car pulls 21 inches of vaccum at idle. So today I replaced the IAC valve.. the old one was covered in dirt and grime and the hole it sat in was full of carbon deposits.. I cleaned all that out real good with TB cleaner (sensor safe).

The F#@king car still does it!!! I'm gonna drive this damn thing into a wall It seems to have improved slightly - the revs drop more smoothly (not in huge steps as they did before) but they still climb too! I really think this idle problem is what's butchering my gas mileage. Tomorrow in the day light I'm gonna check and see if maybe I have a vaccum leak or something (though I am quite sure that I hooked everything up correctly and the car does not idle funny at all when stopped).

Really I'm thinking the PCM For Less tuning is the culprit.. what the hell else could it be?! Could the TPS sensor cause this?

To top it all off the car is now throwing a code also.. hopefully it's an o2 sensor code (I've got some new ones sitting here).. but if it's ANOTHER "unexpected high idle rpm/IAC valve" code I'm gonna shoot the car and put it outta it's misery.

Someone help.. I'm outta ideas

 

ok, here's an update:

There's a little vacuum hose/elbow thing that attaches to the passenger side of the TB right under the PCV line.. when I did the TB bypass a year or two ago the thing was cracked real bad so I taped it up and reused it.. well I forgot all about it untill I had the TB off to replace the IAC valve.. it looked worse than ever but I still reused it again.. anyone know where I can find this part? Part number perhaps?

Before I changed the IAC I had a healthy 21 inches of vacuum (used a mechanical guage to test).. now I checked it again this morning and am only getting 19 inches.. I think this little elbow maybe a small vacuum leak but I don't think it's the cause of this problem.. regardless I'd like to fix it just in case since this problem is practically making my car undrivable everytime I try to shift gears the idle climbs so I just drive around slipping the clutch as I change gears (like pressing the gas as I shift). If replacing this little rubber elbow solves my new vacuum problem and the problem persists I'm outta ideas I may send the PCM back to PCM for less and have them check the IAC steps...

Please advise

Edit: Oh, and the SES light was on because I left the electrical connector off the intake elbow (not the maf.. the other one just before the TB.. IAT sensor maybe?)