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

MAF or SD

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Old Jan 15, 2002 | 09:26 AM
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Default MAF or SD

How can I tell if I have MAF or SD?
I have a TPI that came of my 68 Camaro but I dont what kind it is, it does not have the MAF, so I was wondering if it was a SD unit, but then again since the people that had the car befor could not get it started and now Im thinking maybe it is a MAF unit and they just did not have it on.

Jay
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Old Jan 15, 2002 | 09:51 AM
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Default Re: MAF or SD (MrJay)

if it was speed density, the plenum will be drilled for the MAP sensor on the passenger side, just above the FPR on the side of the plenum.

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Old Jan 15, 2002 | 10:04 AM
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Default Re: MAF or SD (MrJay)

Thanks Craig
what is the FPR?

Jay

PS Craig if I take off the cats will I have to get a nother chip?
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Old Jan 15, 2002 | 10:25 AM
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Marcho Polo
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Default Re: MAF or SD (MrJay)

FPR = Fuel Pressure Regulator

Here's a picture of the MAP sensor location:



about the cats.... if you mentioned to me before that you might be removing them, I probably removed the code 32 check.... I don't remember right now. I can check your setup when I get home.
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Old Jan 15, 2002 | 12:37 PM
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Default Re: MAF or SD (Marcho Polo)

Speed desity or Mass Air flow is determined by which ECM you use.


Monte
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Old Jan 15, 2002 | 12:47 PM
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Default Re: MAF or SD (MrJay)

Thanks guys I will have to check it when I get home.

Craig you are the man!

Jay


[Modified by MrJay, 7:17 AM 1/16/2002]
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