different ECM's or ECM differences?

[TBK]

Not take I can figure out. It will erase error codes and that is about it.

Anyone figured out differently?

TK
-----Original Message-----
From: Shannen Durphey <Shannen at mcn.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Sunday, July 26, 1998 6:59 PM
Subject: Re: different ECM's or ECM differences?


>The CPFI engines are Vortech engines.  It's easy to forget
>that TBI was used on some Vortech engines also.  The CPFI
>(VIN code W) has only one injector.  You can tell that you
>have the CPFI selection when you can find something like
>"intake air tuning valve status" on your scanner.  
>
>As a side note, does Diacom run any types of ECM tests?  I
>believe that the 8192 ECMs are bi-directional and will allow
>direct control over some relays and whatnot.
>
>Shannen
>
>Jason Weir wrote:
>> 
>> TBK wrote:
>> 
>> > >almighty, Diacom lists 3 different configurations for the 91 4.3
>> > (eng
>> > >code Z and year code M) they are as follows,
>> > >
>> > >1991 GM/Chevy Truck 4.3 V6
>> > TBI
>> > >1991 Truck Lt-Duty Emisn 4.3 V6
>> >
>> > Vortec or CPI
>> 
>> My 91 vortech was TBI what is the difference in ECMs?
>> 
>> --
>> Jason Weir
>> 88 Wrangler - 258 Chevy TBI
>> Fayetteville, North Carolina
>> http://home.att.net/~jweir
>> mailto:jweir at worldnet.att.net
>