TwinTurbo.NET: Nissan 300ZX forum - This is a circuit based on analog operational amplifier.
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Subject This is a circuit based on analog operational amplifier.
     
Posted by Dark Diver on November 02, 2009 at 8:29 AM
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In Reply To Nice! posted by DVDBURN (MD) on November 01, 2009 at 07:21 PM
     
Message It works only if both MAF return approximatively the same voltage, and only in average mode.
Selin Design's and S-AFC's design (!) is based on digital computing :
- for both MAFs, analog voltage are converted to numeric flow values based on the VQ table or a mathematical function ;
- numeric flows are added or averaged ;
- this digital sum/average is then converted to an analog "MAF-like" value using a reverse VQ table or a reverse function.

Even if both flows measured by both MAFs are very different from each other, the computed sum/average is accurate (but it means you have a serious problem though).
     
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