Using OEM (GM) ECM

John Hess JohnH at ixc-comm.net
Fri Sep 26 15:16:57 GMT 1997


Count me in.


> ----------
> From: 	Shannen Durphey[SMTP:shannen at mcn.net]
> Sent: 	Friday, September 26, 1997 12:59 PM
> To: 	diy_efi at coulomb.eng.ohio-state.edu
> Subject: 	Re: Using OEM (GM) ECM
> 
> 
> 
> Mark Romans wrote:
> 
> > Tom,
> >
> > Standard Master Tune allows you to reset fuel cutoff mph and resume
> mph,
> > same for rpm.  2 cooling fans (If originally so equipped). VATS
> enable
> > or disable. VATS diagnostic, Knock diagnostic, vehicle speed
> > diagnostic(That's page one).
> > WOT spark map. (In my case rpm's on one side and gm/sec from maf on
> > other)
> > Max knock retard in WOT (Based on signal from knock sensor).
> > WOT %chg to afr vs rpm
> > WOT %TPS to enable WOT vs rpm  (% throttle to go to open loop)
> > WOT %chg to AFR vs coolant temp
> > open loop afr %chg vs coolant temp
> > open loop AFR %chg vs load value (grams/sec)
> >
> > It will work on any 165 ecm.  87-88 f,y bodies.  MT pro ads a bunch
> more
> > things that can be modified, you can calibrate your maf sensor,
> reset
> > idle speed, modify(I understand operation of the egr)  turn off
> codes,
> > like when you put headers on the negative back pressure egr will
> turn on
> > the check engine light, you can kill that. I don't know what else is
> > available with the pro series.  But the PRO (Which I don't have)
> will
> > allow you to do 87-93 f&y bodies, and 85-95 trucks.  The pro series
> is
> > $2500.00 and the single application is $295.00.   I have just the
> single
> > application.    Mark.
> 
>   I've been trying to save up my pennies for Mastertune Pro for about
> 15 mos
> now.  Very difficult to do.  Are there ten guys out there with $250
> each
> who'd be willing to pitch in?
> 
> 



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