C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 10, 2013 | 09:24 PM
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Default Guess the part

I bought a refurbished TPI setup and it came with all the bolts, sensors, hoses, etc. This was from an 89 and mine is a 91. From what I read online the only thing I had to do to make it work is to install my MAP sensor and not use a MAF.
This is one of the sensors I got with it. It does not match up with any of the ones on my car though.
Any ideas as to what it is? I am thinking it is some kind of coolant temperature sensor. The markings on one face say 35*c 8sec, another facet says 23V 40W, another says 4318, another BOSCH, another (pictured) and a circled 011 and 0280130229 and the last has Made in Germany 450. Maybe this is the coolant sensor for the 89 plenum base?

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Old Aug 10, 2013 | 09:30 PM
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Originally Posted by corvetteronw
This is one of the sensors I got with it. It does not match up with any of the ones on my car though.
It won't because it looks like the thermo switch that runs the CSI used on early TPI setups ( not part of the '89 setup you bought )

The brass hex head unit to left of the CTS circled.


Last edited by vetteoz; Aug 10, 2013 at 09:32 PM.
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Old Aug 10, 2013 | 10:38 PM
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Thanks Oz! I think that is it. Anyone need one? The plastic part has a chunk missing but I bet it will still work. Freebie!
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Old Aug 11, 2013 | 12:16 AM
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Originally Posted by corvetteronw
Freebie!
$150 new
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Old Aug 11, 2013 | 01:01 AM
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Default guess part

Part of cold start system.Give it to the member with the cold start issues.
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