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

MAF internals picture

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Old Apr 26, 2024 | 06:09 AM
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Hey all,

I mentioned this in another thread about my recent engine troubles but was hoping a dedicated thread would yield results.

Recently I found the lid of the MAF sensor on my '89 sitting on the wonderbar. I removed the MAF to check it out and saw this under the lid:







It sure looks there was supposed to be something plugged into that row of pins doesn't it? This is the Bosch MAF. Does anyone have a reference pic of one of these to compare or any knowledge on this matter? Did my MAF jettison its brain?

I'm not getting any error codes but I kind of feel like full throttle performace is not what it should be. I just finished gutting my disintegrated precats and installing a new cap and rotor to replace the burned up one I found. I thought this would restore the car's feel but I dunno--I think it's slower...
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Old Apr 26, 2024 | 02:43 PM
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Thats how they all look - likely test pins for when they were manufactured
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Old Apr 26, 2024 | 03:09 PM
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Thank you! That's a relief.
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Old Apr 26, 2024 | 06:02 PM
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Your lucky you don't have any codes. I've had a 36 for few years now. Comes and goes...so frustrating. I've replaced it, cleaned it...don't know what else to do.
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Old Apr 28, 2024 | 02:59 AM
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Originally Posted by Snakecharmer383
Your lucky you don't have any codes. I've had a 36 for few years now. Comes and goes...so frustrating. I've replaced it, cleaned it...don't know what else to do.
A starting place:
https://www.corvetteforum.com/forums...post1602301742
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Old Apr 28, 2024 | 02:29 PM
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Thanks for the link.
I'll have to look at Zip when I get home. I know I got a replacement years ago but don't remember where from. Since then I have not replaced it. just tried cleaning it. As much as I drive the car I doubt I'll chase this anymore but it's good to have the info.
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