Re: 92 LT1 chip and computer

[Shannen Durphey <shannen@grolen.com>]

Carl Summers wrote:
> 
> Hi,
>    I have a 92 LT-1 Corvette here and was looking at the computer and
> prom....it appears to be a 1227727 computer but has a part number of
> 16159278 on it....same plugs as a 727 so am assuming it is an updated
> service number...can anyone verify????  
92 and 93 Y body LT1 use the same ecm.  Not the same as the 727.  Also
has separate left/right fuel control strategies. You ought to see what
happens if the O2 sensor wires get crossed at the ecm. 

The prom is a 27256 like a 727 but
> code is completely different....I am assuming this is because of SEFI
> instead of bank fire????? 
No, not SEFI.  Look at the wiring if you have it, all colors for one
side are the same.

 Also noticed there are no resistor packs under
> the esc module on the mem-cal.....I guess my question really is....if this
> is a 7727 then am I correct in assuming any 7727 computer can be made
> sequential with pinout changes and ignition signal changes???? can a 7730 be
> changed as well or are there not enough pins????? Anyone have any experience
> with this????? Thanks
Not the same beast, no simple swap there.

> -Carl Summers
> p.s. anyone playing with any 2 or 3 bar stuff for this computer?????<G>
Put my name on the "mee too" list if you get any info about this. : )
Shannen