A quick history... I was having some slow acceleration issues for the past few weeks so I cleaned my TB, IAC pindle and replaced the TPS (the TPS was reporting a 10-70% throttle). The new TPS also reported a weird throttle range (15-69%) so I purchased another off of Rockauto after giving them the OEM model number that I got from the dealer. They guaranteed that it would then be the right model TPS for me. Oddly enough even that TPS reports the same throttle range but the Jeep drives ok. Today I started to notice a high idle, about 1100rpms. I noticed that the idle increases when I turn my AC on (this causes an abnormal noise and vibrations that can be felt through the Jeep) or when I pump my brake pedal hard while not moving.
I'm going to try my old TPS again and see if this problem still occurs. I'm also curious if the extreme heat today could be causing this (it's about 90F outside). I've read the main culprits for this can be the IAC, TPS, ECT, MAP or a vacuum leak but I don't want to just throw parts at this. I've attached a sample data log from my scanner of the engine at idle and when I engaged the AC (had to upload to megaupload, forum only allows picture attachments).
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You can see that the idle increases slightly along with the MAF pressure and even the throttle position. Could anyone analyze this and perhaps point out anything that doesn't look kosher? Do some of these values look OK? My ECT reports the coolant to be 203 after idling for 10 minutes in the baking sun. My temperature needle never seems to go past 210 even in heavy traffic. My IAT also seems to be pretty high.
I lean towards replacing the TPS back to the old one because the throttle position increases when I turn the AC on and I don't think the computer could change the throttle position %, just the idle RPM via the IAC, is that a good assumption?