[Casper]

Here's my situation:

Swapped in a ported early 2000 manifold and the FC 65mm TB. Love the throttle reponse, and the mid-range punch. Everything works like a hot damn, except for a SLIGHT hanging rev (somewhat normal from what I hear) and a HORRIBLE idle.

It sounds like its about to stall, and the RPM bounce around 600-800 constandly. At idle, its sounds like crap. I've got a CEL to boot. So far i've tried:

- Unplugging various sensors to see if any of them are the culprit. MAF, IAC, TPS. The only one that made a difference was the IAC, which I replaced with a spare I had. Minor improvement, same problem.

- Went over and sealed any vacuum leaks. Copious amounts of gasket maker later, the hanging revs are mostly gone, idle remains.

- Its not the idle adjustment on the TB, and the TPS IS in the correct position.

- Checked the gascap, re-set the computer. At this point I suspect a TPS, but aside from the idle, I have NO problems with the way it runs.

So, before I start throwing money at a new TPS, any suggestions?

I'm working on getting my hands on a code reader to pull the DTC to make sure that its really the problem.