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

codes 23-32

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Old Dec 27, 2006 | 08:12 AM
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Default codes 23-32

i have a 1985 vette with the tune port motor my check engine light has been coming on and these are the codes that it is throwing can anyone tell me what these are?
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Old Dec 27, 2006 | 09:19 AM
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Yeah mate, 23 is the IAT sensor, should be located in the base of the plenum.

32 is the EGR system.
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Old Dec 27, 2006 | 09:42 AM
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http://members.shaw.ca/corvette86/Code%2023.pdf
http://members.shaw.ca/corvette86/Code%2032.pdf
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Old Dec 27, 2006 | 11:33 AM
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ok what is the iat and the egr
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Old Dec 27, 2006 | 12:09 PM
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IAT is Intake Air Temperature sensor, EGR is Exhaust gas recirculation system.
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Old Dec 27, 2006 | 12:35 PM
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if you have an interest in what the various sensors on your engine do, check out this write up. You will find good information on both the IAT and EGR functions:

http://members.aol.com/InjuneerZZ/Sc....htm#step%2013

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Old Dec 27, 2006 | 02:51 PM
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Originally Posted by dallasknight
ok what is the iat and the egr
It is obvious that you desperately need a service manual
Nothing wrong with being a beginner
So ask away if you are confused
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