ecm interchange

moparmuscle · 02-23-2009, 06:28 PM

Will the ecm from a '90 350 tbi 4 spd 4x4 work in a 94 350 tbi 5 spd 4x4?

bradrhale · 02-23-2009, 07:40 PM

i would think so. both same size blocks and same FI system.

mudseeker · 02-23-2009, 08:42 PM

should work, i don't believe they had VATS back then.

silverhairdeere · 02-23-2009, 09:40 PM

nope , according to advance interchange section
While we find your parts, please enter your ZIP Code at PartsAmerica.com

While we find your parts, please enter your ZIP Code at PartsAmerica.com

shd

moparmuscle · 02-24-2009, 10:11 PM

Quote:

Originally Posted by silverhairdeere

nope , according to advance interchange section
While we find your parts, please enter your ZIP Code at PartsAmerica.com

While we find your parts, please enter your ZIP Code at PartsAmerica.com

shd

I trust none of the "parts warehouses". All of my vehicles get nothing but mopar parts or in this case gm parts. I think it will work so I will just try it and see what happens. The scanner will tell me any problems.

silverhairdeere · 02-24-2009, 10:14 PM

Quote:

Originally Posted by moparmuscle

I trust none of the "parts warehouses". All of my vehicles get nothing but mopar parts or in this case gm parts. I think it will work so I will just try it and see what happens. The scanner will tell me any problems.

didn't mean to pea you off , good luck , and watch for any smoke .

shd

crabtruck · 02-25-2009, 02:34 AM

I know they had some change for the 92-94 DRAC chips.
That wouldn't make any diff if not moving that also.
There have been some prom changes,
but I don't think that will effect using the GMCM/ECM.
Not much, but I have some ID info below from Oct'94:

moparmuscle · 02-25-2009, 05:32 AM

Quote:

Originally Posted by silverhairdeere

didn't mean to pea you off , good luck , and watch for any smoke .

shd

Didn't pea me off. Sorry if I sounded condescending. It's just that the parts stores I have dealt with are only interested in selling parts, even if it's wrong. My dilema is that my 94 has picked up a rough idle and a stumble at low rpm in any gear. I have tried relentlessly to find a vacuum leak but cannot. No codes, fuel pressure is rock solid 13 psi. New distributor and module, cap, rotor, wires. Truck will drive out of it and run great above 2000 rpm.

Kennyray · 02-25-2009, 05:34 AM

check your egr, might have some carbon in there keeping from fully closing

silverhairdeere · 02-25-2009, 05:49 AM

sounds like either the egr or the coolant temperature thingey . i don't trust them either , but can't afford anything else , also don't trust crab or leo there just right too many times , it's like they are aliens or something

shd

02-23-2009, 06:28 PM	#1
moparmuscle Full Member Join Date: Jan 2009 Location: Montana Posts: 48	ecm interchange Will the ecm from a '90 350 tbi 4 spd 4x4 work in a 94 350 tbi 5 spd 4x4?

02-23-2009, 08:42 PM	#3
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,376	should work, i don't believe they had VATS back then. __________________ i'd rather be hunting

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
parts interchange	rove	Chevy Truck Forum	4	02-02-2009 08:18 PM
Body parts interchange- what will fit an '83	barrys	Chevy Truck Forum	9	12-16-2008 01:57 PM
I need some interchange help please	mehanso	Chevy Truck Forum	4	11-02-2008 09:28 PM
Speedo interchange?	pbouffard	Chevy Truck Forum	1	04-27-2007 10:40 PM
exhaust interchange?	bluneon	Ford Truck Forum	2	01-22-2006 01:19 PM

02-23-2009, 07:40 PM	#2
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,030	i would think so. both same size blocks and same FI system.

02-23-2009, 09:40 PM	#4
silverhairdeere Senior Member Join Date: Feb 2008 Location: land between the lakes tn Posts: 1,184	nope , according to advance interchange section While we find your parts, please enter your ZIP Code at PartsAmerica.com While we find your parts, please enter your ZIP Code at PartsAmerica.com shd

02-25-2009, 05:34 AM	#9
Kennyray Senior Member Join Date: Oct 2005 Location: Birmingham, AL Posts: 659	check your egr, might have some carbon in there keeping from fully closing

02-25-2009, 05:49 AM	#10
silverhairdeere Senior Member Join Date: Feb 2008 Location: land between the lakes tn Posts: 1,184	sounds like either the egr or the coolant temperature thingey . i don't trust them either , but can't afford anything else , also don't trust crab or leo there just right too many times , it's like they are aliens or something shd