GM EGR Disable

[Programmer]

May you live long and prosper--thanks for the info !

Lyndon IPTECH
-----Original Message-----
From: Ward <wspoonemore at excite.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Tuesday, July 06, 1999 10:11 PM
Subject: Re: GM EGR Disable


>Here you go.. enjoy.
>    ;---------------------------------------------
>    ; EGR ENABLE PARAMS
>    ;  LO5, MD8
>    ;---------------------------------------------
> ORG $46EF
>
>L46EF  FCB 73      ; 15c START UP COOL THRESH TO ENABLE EGR
> ;
>L46F0   FCB 153     ; 75c COOL Thresh to enable EGR 
>L46F1   FCB  95     ; 31c COOL Thresh to enable EGR
> ;
>L46F2   FCB 0       ; -50c MAT Thresh to enable EGR      
>L46F3   FCB 0       ; -50c MAT Thresh to disable EGR 
> ;
>L46F4  FCB  0      ; 0 MPH Vss THRESH TO ENABLE EGR
> ;
>L46F5  FCB 32      ; 800 RPM Thrsh for EGR OFF TO ON  
>L46F6  FCB 30      ; 750 RPM Thrsh for EGR  TO STAY ON
> ;
>L46F7   FCB 8       ; 3% TPS Thresh for EGR OFF to ON  
>L46F8   FCB 5       ; 2% TPS Thresh for EGR TO stay ON
>        ;
>L46F9   FCB 45      ; 34 Kpa MAP Thresh for EGR OFF to ON   
>L46FA   FCB 38      ; 34 Kpa MAP Thresh for EGR stay ON  
>          ;
>L46FB   FCB 230     ; 7.8 Kpa VAC Thresh to TURN EGR OFF
>L46FC   FCB 227     ; 8.8 Kpa VAC Thresh to KEEP EGR OFF
>        ;   Kpa = (255-BIN) * .3125
> ;
>L46FD   FCB 166     ; 65% MAX TPS FOR EGR ON
>L46FE   FCB 140     ; EGR OFF WHEN L.T. 14:1 AFR 
>
>
>
>
>On Mon, 5 Jul 1999 20:26:20 -0600, Programmer wrote:
>
>> Hi guys,
>> 
>> Been lurking and basically can't find this info in the archives--or it's
>> there and I can't find it. There are many ways to disable EGR--either
>fill
>> "00"s in the EGR table or just turn off the light. I've had pretty good
>luck
>> just turning off the EGR "test" instead of disabling EGR when somebody
>does
>> an exhaust workover--comments ?
>> 
>> I've got a 95 GM truck coming in this week--I've done a lot of the 7747
>ECM
>> related ones, but this one's going to be new. Best way to disable ??
>> 
>> Hope Shannon got his A/C working...
>> 
>> Lyndon IPTECH
>> nwester at eidnet.org
>> Is it just me, or am I slowing down...
>> 
>
>
>
>
>
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