Map sensor

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Jan 15, 2020 | 03:54 AM

C4firstvette

Thread Starter

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Joined: Jun 2019

Posts: 31

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From: Cincinnati

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.

Jan 15, 2020 | 08:53 PM

CorvetteRules

Drifting

Joined: Nov 2018

Posts: 1,781

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From: Mays Landing, NJ

https://www.corvettepacifica.com/pro...ure-map-82-96/

Jan 15, 2020 | 11:09 PM

TommyFox

Melting Slicks

Joined: Jun 2011

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From: Leland , North Carolina

Quote:

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.

Jan 16, 2020 | 01:01 AM

aklim

Team Owner

Joined: Jul 2004

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From: Hartford WI

Quote:

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.

Jan 16, 2020 | 08:09 AM

TommyFox

Melting Slicks

Joined: Jun 2011

Posts: 2,375

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From: Leland , North Carolina

Quote:

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.

Jan 16, 2020 | 08:18 AM

fredk

Burning Brakes

Joined: May 2005

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From: Muskoka Ontario

I believe the MAP started with the LT1.

Jan 16, 2020 | 09:08 AM

aklim

Team Owner

Joined: Jul 2004

Posts: 28,360

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From: Hartford WI

Quote:

Originally Posted by fredk

I believe the MAP started with the LT1.

I have a 91 with an L98 and it is MAP

Jan 16, 2020 | 01:29 PM

TommyFox

Melting Slicks

Joined: Jun 2011

Posts: 2,375

Likes: 384

From: Leland , North Carolina

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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Jan 16, 2020 | 03:49 PM

CorvetteRules

Drifting

Joined: Nov 2018

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From: Mays Landing, NJ

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.