WTB - Wiring harness to put a 1991 turbo shadow motor/ECU into 1990 NA Sundance

[snackdrag]

I am looking to put my 1991turbo motor and ECU into a 1990 sundance.

what wiring harness will work? Would like to purchase and complete my build.

1991 Turbo Shadow wiring harness preferred but alternatives will be appreciated.

thank you.

[135sohc]

http://www.turbo-mopar.com/forums/sh...ess.&highlight=

$120 and its yours.

90 uses a series of small connectors under the dashboard. 91-92? uses 3 large connectors and a 4th smaller one.

[snackdrag]

will the 90 harness plug into the 91 computer and motor?

[135sohc]

will the 90 harness plug into the 91 computer and motor?

plug @ the computer is the same. The TPS plug on a 90 is a GM weatherpack, 91 its a chrysler plug. buy a TPS for a 1990 engine at the store and call it a day. The other difference is the coil location. on a 90 its an old school type coil mounted on the inner fender. Your 91 has the little epoxy coil mounted on the T-stat housing. Theres some wiring to relocate and a connector to add to the front engine harness if you went that route. Otherwise just stick with the older coil, it will run the same either way.

Or you could run a 91 harness (mine is not for sale) to match up 100% with your engine but every connector under the dash board is different


Heres a 90 harness:


Heres a 91+:


Chrysler didnt make this stuff easy

[snackdrag]

Thank you for the information. I forwarded your post to my mechanic, and if he says we're good to go we can arrange payment.

if it makes a difference, my 91 computer was converted to a 3bar MAP by relentless performance. however i believe we can add that after the fact?

[Directconnection]

will the 90 harness plug into the 91 computer and motor?

Yes.

I see you're looking for the same model year harness for your car, which is good... as the '91 P-body harnesses differed a bit and weren't plug and play into the 1990. 135sohc has just what you want as they are very hard to come by. If that doesn't work out for you, though... I have a '90 Daytona T-I harness that will work, but most likely with some splicing.

[snackdrag]

plug @ the computer is the same. The TPS plug on a 90 is a GM weatherpack, 91 its a chrysler plug. buy a TPS for a 1990 engine at the store and call it a day. The other difference is the coil location. on a 90 its an old school type coil mounted on the inner fender. Your 91 has the little epoxy coil mounted on the T-stat housing. Theres some wiring to relocate and a connector to add to the front engine harness if you went that route. Otherwise just stick with the older coil, it will run the same either way.

Or you could run a 91 harness (mine is not for sale) to match up 100% with your engine but every connector under the dash board is different


Heres a 90 harness:


Heres a 91+:


Chrysler didnt make this stuff easy

Mechanic removed the 1990 ECU/SMEC and replaced with the 1991 SBEC. half the 1990 harness plugged right in to the SBEC (the headlights etc... but not the injector or engine sensors) does that sound right?

[135sohc]

Yeah pretty much. 90% of the harness is the same between a TBI and Turbo application. The additional wires for the extra injectors, solenoids and the location of the AIS & TPS connectors is the biggest difference for the main harness.

[shackwrrr]

Howabout the 88/89 harness? Ive wondered about using one for the smec since the sbec/latch adapter aren't playing nice with the ostrich.

[raccoon]

the 91 plugs look a lot like my 88's plugs. id assume its close for 88-91 cars. might have to move a wire or two but the plugs I believe are physically compatible.

[135sohc]

I just want to know chryslers logic to using a different method/style of connector for every car line ? Were they that concerned about the assembly line crew grabbing and installing the wrong harness in the wrong car ? And stupid crap like the differences between a 90 and 91 P body harness alone.

If/when the day ever comes I do my engine swap/restoration project I'm throwing every bit of the factory wiring in the trash and doing a complete clean sheet design and construction from tailight to headlight.

[snackdrag]

I just want to know chryslers logic to using a different method/style of connector for every car line ? Were they that concerned about the assembly line crew grabbing and installing the wrong harness in the wrong car ? And stupid crap like the differences between a 90 and 91 P body harness alone.

If/when the day ever comes I do my engine swap/restoration project I'm throwing every bit of the factory wiring in the trash and doing a complete clean sheet design and construction from tailight to headlight.

when that day comes, please sell me your old wiring. hahaha.

[Directconnection]

when that day comes, please sell me your old wiring. hahaha.

Didn't you buy the '90 harness he was selling?

[135sohc]

Yup. All boxed up and ready to go.

[John B]

Sorry for just jumpimg into this thread, but I'm looking for a '91 Shadow t1 harness if you know where one can be found. Thanks!