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1990 corvette computer failing

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Old Jul 24, 2019 | 11:44 PM
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Default 1990 corvette computer failing

When i took my 1990 too the smog shop they said they tried to smog it but the computer or the ECU or ECM wouldn't work. They told me i need to replace the computer in it and i was wondering if anybody share some advice on what i should do. How much would it cost to get a replacement?
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Old Jul 26, 2019 | 04:49 PM
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Any other symptoms besides them not being able to make it talk? Is OBD1 supposed to go through the emissions? 29 year old car? Unless you live in the land of fruit and nuts or similar.

Last edited by aklim; Jul 26, 2019 at 04:50 PM.
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Old Jul 26, 2019 | 09:10 PM
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I live in California. But they said the code wouldn't pop up for them.
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Old Jul 26, 2019 | 09:12 PM
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Originally Posted by C4lover2000
I live in California. But they said the code wouldn't pop up for them.
You are OBD 1 so all you need to do is short the terminals and if it pops up code 12 3 times, it is good
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Old Jul 26, 2019 | 09:17 PM
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Thanks for the information.
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Old Jul 29, 2019 | 11:21 AM
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Advance Auto will sell you a rebuilt unit without the chip for under $200 with your old one exchanged.
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Old Jul 29, 2019 | 06:45 PM
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….. Try another shop …..
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Old Jul 29, 2019 | 07:05 PM
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Originally Posted by mickey5
Advance Auto will sell you a rebuilt unit without the chip for under $200 with your old one exchanged.
https://www.autozone.com/engine-mana...89_218203_6207

$105.99 Plus tax ASSUMING he needs it.

Last edited by aklim; Jul 29, 2019 at 07:05 PM.
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Old Jul 30, 2019 | 12:09 AM
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Okay if i bought a new one would i have reprogram the computer and where would i find a new chip? And how much do you think it will cost me to replace the whole computer system?
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Old Jul 30, 2019 | 12:20 AM
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Originally Posted by C4lover2000
Okay if i bought a new one would i have reprogram the computer and where would i find a new chip? And how much do you think it will cost me to replace the whole computer system?
How do you know the chip is bad?
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Old Jul 31, 2019 | 08:43 AM
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Originally Posted by C4lover2000
Okay if i bought a new one would i have reprogram the computer and where would i find a new chip?
It appears you are being steered down a path I would not go. I would find another shop like mentioned already, but to answer your question, this guy can burn you a new stock chip: http://scotthansen.net
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