Which ECU
03-26-2014, 11:50 PM
#1
Which ECU Hello all, new member here. Did a search but could not find the answer I need. I'm putting a 2003 LM4 in a 1939 Chevy. Got the engine/trans (4L65E) and wiring from a Trailblazer but the ECU was missing. I intend to use the stock harness with mods necessary and retain the DBW. First thing I did was to replace the oil pan with a rear sump unit and will be replacing the exhaust manifolds with hugger headers for space reasons. Hope to be able to retain the stock mountings for all accessories but initial fitting is iffy. Once I get a computer I'll be able to get the pinouts and modiffy the harness. So, the question is...what computer to get? Numbers? Pictures later. Thanks
Last edited by 33willys; 03-28-2014 at 11:24 PM.
03-26-2014, 11:55 PM
#2
TECH Regular
iTrader: (6)
Join Date: Sep 2012
Location: Austin, Texas
Posts: 438
Likes: 0
Received 0 Likes
on
0 Posts
0411 will work. Will need the pedal and a file from like an 02-03 z06 or similar.
It's a lot easier to do DBC unless you are dead set on keeping it DBW. My .02
It's a lot easier to do DBC unless you are dead set on keeping it DBW. My .02
Last edited by onetype; 03-27-2014 at 12:11 AM.
03-27-2014, 08:10 AM
#3
When I got the engine I also got the "stuff" for the DBW. A smooth firewall is one of my goals. Just thought the original ECU would be the best way to go but can't find the correct numbers for it. From reading other post the 12200411 unit seems to be the "go to" computer. Guess it will also handle the 4L65E.