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Old 10-23-2006, 02:13 AM   #1
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Default 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?
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Old 10-23-2006, 03:29 AM   #2
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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).
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Old 10-23-2006, 07:24 AM   #3
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Why would you want to use MAF over MAP? Especialy when you can retune the MAP?
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Old 10-23-2006, 12:49 PM   #4
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Edit: Nevermind, it seems this won't work for my application

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Old 10-23-2006, 01:46 PM   #5
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Quote:
Originally Posted by kingofl337 View Post
Why would you want to use MAF over MAP? Especialy when you can retune the MAP?
The hotwire MAF is more precise?
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Old 10-24-2006, 09:31 AM   #6
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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
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Old 10-24-2006, 01:30 PM   #7
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Quote:
Originally Posted by Alta_Racer View Post
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
At WOT the MAP signal is constantly varying. it's not a flatline as you're suggesting, there are fluctuations in the signal.
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Old 10-24-2006, 02:59 PM   #8
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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.
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