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Old Jan 15, 2020 | 03:54 AM
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Default Map sensor
1989 corvette in need of new map sensor. Does anybody know the part number I need? I have heard there is a new sensor so I want to make sure I get the right one. Thank you
Last edited by C4firstvette; Jan 15, 2020 at 03:54 AM.
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Old Jan 15, 2020 | 08:53 PM
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https://www.corvettepacifica.com/pro...ure-map-82-96/
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Old Jan 15, 2020 | 11:09 PM
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Originally Posted by C4firstvette
1989 corvette in need of new map sensor. Does anybody know the part number I need? I have heard there is a new sensor so I want to make sure I get the right one. Thank you
Should be a MAF.
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Old Jan 16, 2020 | 01:01 AM
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Originally Posted by TommyFox
Should be a MAF.
Wasn't it 90-91 that had the SD system? Is it possible that he got a late 89 that had 90 circuitry? Not sure but that is my only theory.
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Old Jan 16, 2020 | 08:09 AM
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Originally Posted by aklim
Wasn't it 90-91 that had the SD system? Is it possible that he got a late 89 that had 90 circuitry? Not sure but that is my only theory.
That's what I thought. I've never seen an 89 with a MAP from factory.
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Old Jan 16, 2020 | 08:18 AM
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I believe the MAP started with the LT1.
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Old Jan 16, 2020 | 09:08 AM
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Originally Posted by fredk
I believe the MAP started with the LT1.
I have a 91 with an L98 and it is MAP
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Old Jan 16, 2020 | 01:29 PM
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From my observation 1990 was the first MAP TPI not counting the 84 I personally prefer the MAP and wish an 89 6 speed had one. Would like to convert mine to MAP. I know it's been done but haven't hat the time to research it....
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Old Jan 16, 2020 | 03:49 PM
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My 91 L98 has MAP. Replaced it after getting an engine light and scan pointed to it. As already pointed to, it does appear it wasn't used until 90 model year.
Last edited by CorvetteRules; Jan 16, 2020 at 03:51 PM.
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Old Jan 16, 2020 | 04:52 PM
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90 and 91 have MAP. My 90 has it.
Last edited by Natty C; Jan 16, 2020 at 04:54 PM.
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