MAF to MAP

CSH-HQ nacelp at jvlnet.com
Wed Aug 18 02:06:54 GMT 1999


Let's see Mass to vac.
Would need rpm, and air temp corrections.

Plus either volt to volt,
or frwq to volt

Bruce



>I'm working on a couple of microcontroller projects, and was wondering if
>anyone here has ever "mapped" the MAF signal to a MAP signal.  Is that
>confusing enough?  In other words, I'm using a 68HC11 mcu, and want to use
>one of the PWM outputs to emulate the MAF signal to a stock ECM.  I'm
>planning to try running the car with the MAF still in place, and a 3 bar MAP
>hooked up, and data logging the two signals vs. RPM.  Then making a 2D
>lookup table for the mcu that would read the MAP and RPM, look up the MAF
>value, and output it.  Does anyone think this will be sufficient, or would
>it need more dimensions, like maybe delta TPS for accel/decel?
>
>Thanks for any opinions,
>Kendall Frederick
>




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