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Topic Review (Newest First)
03-30-2012 08:18 PM
Gkrynick22
Quote:
Originally Posted by brentd711

No. The '95 speedo gets a signal from the VSS (through the PCM), the '91 has a VSS but also has a cable for the speedo. Check any online parts places and you'll see they don't cross over.
Thanks for the info.
03-30-2012 07:59 PM
brentd711
Quote:
Originally Posted by Gkrynick22 View Post
My question is will a 1991 4 cyl manual transmission ECM work in my 1995 4 cylinder manual?
No. The '95 speedo gets a signal from the VSS (through the PCM), the '91 has a VSS but also has a cable for the speedo. Check any online parts places and you'll see they don't cross over.
03-30-2012 05:24 PM
Black Bear
Quote:
Originally Posted by sevenservices View Post
if ALL options are exactly the same it would work. But I remember when I replaced mine they needed my VIN to program it to.
my 94 2.5 5speed needed new ecm and had to be programmed with the vin also,tried various ones from the junkyard and none worked because of this
03-30-2012 03:53 PM
2xs ALL 1996 vehicles are required to be OBD2.
SOME heavy duty vehicles are exempt.
Motorhomes where the chassis was built in 95, but the body finished are registered as 96, but are required to meet 95 standards.

there was no split, some manufacturers dropped the ball,which is wny some vehicles were still OBD1 in 1996 (ford trucks did this on some models up until 2001!). have exemptions, at the factory level.

Read the under-hood emissions decal, that is the GOD sticker.... if its built after 96, but is OBD1, it is required to say it on that sticker, this is a Federal requirement, not a Cali one.
03-30-2012 03:45 PM
sevenservices if ALL options are exactly the same it would work. But I remember when I replaced mine they needed my VIN to program it to.
03-29-2012 08:18 PM
Gkrynick22 Thanks. I don't think cars or trucks were equipped with obd2 until 1996 (split year for obd 1&2) and 1997 (all obd2). So that shouldn't be a problem.
03-29-2012 07:54 PM
4Jeepn might work, but OBD 1 vs OBD 2 might come into play depending on what years they switched that over, which of course I can't recall, sorry.
03-29-2012 07:33 PM
Gkrynick22
Does anyone know if an ECM from a 1991 will work in a 1995?

My ECM is apparently a refurbished ECM and there is no number on the actual ECM. There is a number on the harness that connects to it, but I am not sure if it the actual ECM number. My question is will a 1991 4 cyl manual transmission ECM work in my 1995 4 cylinder manual?

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