LT1-LT4 Modifications 1993-97 Gen II Small Block V8

New TB Stuck RPM

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Old 08-19-2010, 09:09 PM
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I knew it was for a 93, that's one of the reasons I did solder in the 93 IAC harness (since electrically they are compatible)...

I was told though it would work, but I can understand where your coming from, because the TPS only goes up to 84%...

PS: The TPS is the same, part numbers match.. I think it's the voltage the PCM sends out is different, and what it expects to read.

I'll have to try and clean my old TB and reinstall it i guess. My old one is so blackened it wouldn't clean.
Old 08-19-2010, 09:37 PM
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Ok, I wasn't 100% sure about the TPS part number. To be honest I would get the correct throttle body for your correct application, it will save you a large headache. Like I mentioned earlier you should have no problem selling that 52mm unit for what you paid.
Old 08-19-2010, 10:40 PM
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I'm gonna have to take the bottom IAC plate though, I lost the 94 IAC connector I cut off (besides, I bought a new 93 IAC connector, I'm not going to put it to waste, especially since i just bought a new 93 IAC too.
Old 08-20-2010, 10:36 AM
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Ok I put my old TB back on, and since I had soldered a 93 IAC harness on and bought a new 93 IAC, I decided to just take the bottom plate and mount it onto my TB.. Those parts are the same, just the coolant spot aims differently (i have a TB bypass so whatever), and IAC mount..

Car idles great now.. Datalog says learned idle position on IAC is 20, but it says metered is 0.. Is that normal? Metered goes up when I rev, and learned just stays the same..



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