MAF to MAP

[DC Smith]

This sounds good Kendall! Any way I can help? I don't get too much time
on stuff like this, but given the right project, it could become a
priority. :)
 I don't know much about the 68hc11.. this may be a learning experience.

the Fredericks wrote:
> 
> Air temp sounds like a good idea.  I'm planning to use one of the A/D ports
> for the input 0-5V MAP signal, and one of the PWM outputs for the frequency
> signal out.  Already had planned on RPM.  Does anyone know how well the ones
> from HKS (VPC) work, and what inputs they use?
> 
> Thanks,
> Kendall
> 
> -----Original Message-----
> From: owner-gmecm at esl.eng.ohio-state.edu
> [mailto:owner-gmecm at esl.eng.ohio-state.edu]On Behalf Of CSH-HQ
> Sent: Tuesday, August 17, 1999 10:07 PM
> To: gmecm at efi332.eng.ohio-state.edu
> Subject: Re: MAF to MAP
> 
> 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
> >

-- 
***********************************************************************
Dan Smith      84 Regal   12.03 at 110.45     GSCA# 1459
St.Charles, Missouri 
mailto:morepoweral at tetranet.net               
http://www.tetranet.net/users/morepoweral
***********************************************************************