Using GM MAF sensor?

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10-23-2006, 01:13 AM

StankCheeze

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Using GM MAF sensor?

Megasquirt seems pretty flexible, is there any reason we couldn't use a typical GM MAF sensor as long as we had the MAF tables?

10-23-2006, 02:29 AM

Reverant

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None apparently, you just need to make sure that the MAF you have outputs 0-5V (or use a voltage divider if Vmax>5V).

10-23-2006, 06:24 AM

kingofl337

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Why would you want to use MAF over MAP? Especialy when you can retune the MAP?

10-23-2006, 11:49 AM

StankCheeze

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Edit: Nevermind, it seems this won't work for my application

Last edited by StankCheeze; 10-23-2006 at 12:16 PM.

10-23-2006, 12:46 PM

bripab007

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Quote:

Originally Posted by kingofl337

Why would you want to use MAF over MAP? Especialy when you can retune the MAP?

The hotwire MAF is more precise?

10-24-2006, 08:31 AM

Alta_Racer

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It seems to me at WOT a MAP is going to be fixed value. A MAF will actually tell the ecm someting about what is actually happening.

At WOT is not the intake pressure allways going to be near atmosphere no matter what the rpm?

I should think a MAF should be able to correct the fuel curve better.

Ron

10-24-2006, 12:30 PM

richyvrlimited

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Quote:

Originally Posted by Alta_Racer

At WOT the MAP signal is constantly varying. it's not a flatline as you're suggesting, there are fluctuations in the signal.

10-24-2006, 01:59 PM

kingofl337

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The MS supports dual pressure sensors so you can calculate for altitude on the fly. The diffrence really doesn't do alot unless you like to run on the edge. I which ccase a WB02 would fix that issue.