VATS Bypass

Andrew F. Gunnesch afgun at mongoose.dearborn.sgi.com
Tue Dec 22 15:08:49 GMT 1998


OK, can you help me disable the EGR code in my '165 ECM then?

Where do I start?

Thanks,

--andrew

On Dec 21,  7:56pm, Bruce Plecan wrote:
> Subject: Re: VATS Bypass
>
> -----Original Message-----
> From: Andrew F. Gunnesch <afgun at mongoose.dearborn.sgi.com>
> To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> Date: Monday, December 21, 1998 10:56 AM
> Subject: Re: VATS Bypass
>
>
> >Bruce, what about his concerns about burning up his engine?
>
> "I think" he was partly talking in jest.  But, it's always preferred to have
> things right, rather than cobbed.  No offense meant, just if your using
> a gm ecm it's best to play their game.  IE, if EGR called for, either
> disable the call or it's reporting.
> >
> >I'm running the 'vette heads without headers currently, so I'm not >running
> EGR either (interestingly, I don't get a code set).
>
> With my 747, and 6956's they would always catch it, er set a code.
> >
> >Am I in danger of damaging my engine?
>
> The best solution is disabling it, meaning that neither the timing/fuel
> corrections are applied.  If you tune well, I doubt trouble, but that is a
> game call for skill levels.
> >
> >On Dec 21, 12:31am, Bruce Plecan wrote:
> >> Subject: Re: VATS Bypass
> >>
> >> -----Original Message-----
> >> From: Mike Pilkenton <mpilkent at ptw.com>
> >> To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> >> Subject: Re: VATS Bypass
> >>
> >>
> >> >That was me!  I have a 92 3.1L v6 Camaro motor that I want to eliminate
> the
> >> >VATS as well as the EGR system due to a custom exhaust I have to
> fabricate.
> >> >I was told that I must richen up the A/F mixture if I run without the
> EGR
> >> or
> >> >I will burn up the pistons/rings eventually.  Anyone heard of this?
> >>
> >> If there is no way to keep the egr intact, then you'll have to turn off
> >> it's diagnostics, or trick the ecm into thinking it's there.  Might need
> to
> >> use like a 4066 running off the egr apply solenoid signal to trigger
> >> a voltage divider on the MAP signal.  Assuming this is a MAP system.
> >> Bruce
> >> >
> >> >Mike Pilkenton
> >> >
> >> >-----Original Message-----
> >> >From: Bruce Plecan <nacelp at bright.net>
> >> >To: diy_efi at efi332.eng.ohio-state.edu
> <diy_efi at efi332.eng.ohio-state.edu>
> >> >Date: Sunday, December 20, 1998 3:00 PM
> >> >Subject: VATS Bypass
> >> >
> >> >
> >> >>Someone needed a 55 circuit for a VATS bypass, please e-mail
> >> >>me,
> >> >>Bruce     nacelp at bright.net
> >> >>
> >> >>                Rumor has it Martha Stewart is prepared to formally
> >> decline
> >> >>                her invitation to X-Mas Dinner at CSH, HQ, for the 2nd
> >> year
> >> >>                IN A ROW.....   Oh the pain!..
> >> >>
> >> >
> >>-- End of excerpt from Bruce Plecan
> >
> >
>-- End of excerpt from Bruce Plecan





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