1G 1991 Plymouth Laser RS

[Dan Harvey]

Hello all, I am in the process of picking up a 1991 Plymouth Laser RS for dirt cheap. The problem is the ECU was stolen out of the car is why the guy is selling it. Was run/driving perfect before that. My problem is being new to this make and model I don't know "exactly" which ECU I need.
Its a 91 RS 2.0 AT non turbo all stock.
Best I can find through extensive search is possibly 4g63, but with so many sub-identifiers im lost.

Any help would be appreciated as to which one(s) will work.
Thx

 

[pauleyman]

91 to 94 non turbo two liter is what you need.

 

[Dan Harvey]

91 to 94 non turbo two liter is what you need.

Does it matter the MDxxxx as long as its a 2.0 in that year range?

 

[pauleyman]

The differences I know about are small code changes. The only oddballs I can see are ca cars. If memory serves there is no auto 5spd difference in nt cars.

 

[drewbuddy]

http://simon.chi.il.us/ECU/ECUID.html
Check this out found it in another post

 

[Dan Harvey]

Awesome, thanks. Luckily the one I ordered before I saw your post was the right one, but was good to know for sure.
Another quick Q, is the laser obd0 or obd1?

 

[o0GuitarKid0o]

Awesome, thanks. Luckily the one I ordered before I saw your post was the right one, but was good to know for sure.
Another quick Q, is the laser obd0 or obd1?

Obd1 ^^

 

[Dan Harvey]

Ok so the ecu is in, but what plugs into the 3 extra yellow connectors coming in through the firewall?

 

[o0GuitarKid0o]

Ok so the ecu is in, but what plugs into the 3 extra yellow connectors coming in through the firewall?

Got a picture? I might reconize if I see where it's located worse comes to worse I take a look in my laser for ya

 

[hotrodssnova]

Sounds like the tcu if it's 3 plugs by the firewall.

 

[Dan Harvey]

I took a pic, but im still in probation period so it wont let me post it.

 

[o0GuitarKid0o]

I took a pic, but im still in probation period so it wont let me post it.

Send me the pic I'll post it asap for ya I'll give you my email

 

[Dan Harvey]

Ok its sent. Thankx a million

 

[o0GuitarKid0o]

Ok its sent. Thankx a million

Looks to me like the tcu , your cars auto Right? Nvm I see it is , your tranny won't work with out the tcu in there

 

[Dan Harvey]

Yea sadly I ordered an ECU because thats what the seller said was stolen. So when I went to put it in this morning, I was like uh,wait, its still there. Should have looked more closely first. So now i have extra ecu and no closer to back together. Bah!

 

[SrKegler]

ouch!! Believe those TCU's are pricy

 

[o0GuitarKid0o]

Yea sadly I ordered an ECU because thats what the seller said was stolen. So when I went to put it in this morning, I was like uh,wait, its still there. Should have looked more closely first. So now i have extra ecu and no closer to back together. Bah!

That sucks man! See if you can find a auto tcu at the local recker I've seen a few

 

[hotrodssnova]

There are ways around them, but I would just start looking. Having an extra ecu is always a good with these cars.

 

[Dan Harvey]

I have looked all over the internet and found info on which tcu's they came with, but does anyone know which one will interchange with the 750093? Just need the thing to work.

 

[PlanZero]

Try Miller import parts.

 

[Dan Harvey]

Ok I did find this and it may be helpful to ithers here as well.

Re: Compatible TCU's

These are TCU part #s

MD738998 91-92 FWD, 1.8L
MD750092- 90-92 AWD
MD750093 91-92 FWD, w/turbo
MD750525 91-92 FWD, 2.0L, w/o turbo
MD754075 93-94 FWD, w/turbo
MD754076 93-94 AWD
MD754077 93 FWD, 1.8L
MD754079 93 FWD, 2.0L, w/o turbo
MD756600 95 FWD, w/turbo
MD756601 95 AWD
MD756916 94 FWD, 1.8L
MD756917 94 FWD, 2.0L, w/o turbo
MD759736 96 FWD, 2.0L, w/turbo
MD759737 96 AWD
MD762042 97-99 FWD, 2.0L, w/turbo
MD762043 97-99 AWD
MR483685 97-99 FWD, 2.0L, w/turbo
MR483686 97-99 AWD

 

[Dan Harvey]

Ok, So ive determined this transmission is shot. Will a 1.8 MT bolt up to a 2.0 4g63. Not interested in turbo or anything. Just need it back on the road.
I know Ill will need the flywheel/clutch stuff for 1.8 and the shifter/slave/tubing etc.
Will I need anything else? ECU wise? will be non turbo.