ZR-1 Net Registry Forums - View Single Post - Electronic Spark Module ... future MY 90 Achilles Heel?

-=Jeff=- · 02-23-2018

Just looked..

Get a 1991 power switch ( unless you are bypassing it) I am sure I can figure out a way to use the 1990 switch for the 1991 design

run a new wire to the knock sensor and get a 1991 knock sensor.

Add the ESC board to the PROM.. Run 1991 code..
I think that is it..

02-23-2018	#5
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,137	Re: Electronic Spark Module ... future MY 90 Achilles Heel? Just looked.. Get a 1991 power switch ( unless you are bypassing it) I am sure I can figure out a way to use the 1990 switch for the 1991 design run a new wire to the knock sensor and get a 1991 knock sensor. Add the ESC board to the PROM.. Run 1991 code.. I think that is it.. __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978