[Turbo Bronco II]

I have an 1985 Bronco II that i'm in the process of doing a 2.3 turbo swap. I got just about everything bolted in and now i'm finding out that the wiring harness that came with the motor I bought (83 T-Bird?) might be incomplete I have a ZGA computor with some kind of chip pluged into it. I cant seem to fing a good wiring diagram for that computor. I can't get any spark let alone getting the injectors to work. Any help would be great.

[jim293]

Welcome to the site. Enjoy your stay.

[Millusos]

hi, welcome to the site,

[heavy metal]

welcome to the site,enjoy!!!!

[mg man 75]

Welcome here is link with bunch of info. Look thru most a pdf. www.rothfam.com - /svo/reference/ Good luck with project. Was Bronco II original 2.3 na efi or carb. Original maybe easier to repin if was efi. I am familiar with BroncoII so reason I ask. Got more info if need it.

[Turbo Bronco II]

The Bronco is an 85 2.8 carb V6 I got a bell housing that allowed me to bolt the 2.3 right up to my transmission so I can still have 4X4. I got spark yesturday but now my injectors arn"t working.

[Turbo Bronco II]

The BNronco is an 85 2.8 carb V6 I got a bell housing that allowed me to bolt the 2.3 right up to my transmission so I can still have 4X4. I got spark yesturday but now my injectors arn"t working.

[mg man 75]

Been busy lately. I notice I misworded my post. Not familiar with the BroncoII. ZGA computer not heard of that one. Look at turboford.net and done search found this. TurboFord.net Forums: 2.3T PCM List
Seem like it is for a 83 turbocoupe. So I looked here for wiring diagram. www.rothfam.com - /svo/reference/ Direct link will not work so get this page and go to 83 thunderbird for wiring diagram. Maybe this will help. Maybe someone more familiar with this computer will help more. Best I could find.

[Turbo Bronco II]

Thanks mg man for your help. I got some wiring diagrams and got everything to work!! So now it runs but I think my MAP sensor is bad because it runs better without it. I'm putting on my centermount header today only to run into another problem with the oil return for the turbo being too short.

[NavySVO]

Originally Posted by Turbo Bronco II

but I think my MAP sensor is bad because it runs better without it.

That is because that setup should used a BAP sensor instead

[Turbo Bronco II]

I'm not sure what a BAP is? the harness plugs right in to the MAP sensor that came with the motor but it dosn't have very snappy throttle response.

[NavySVO]

BAP
Barometric Air Pressure

[Big-ums]

My dad says that means you don't hook vaccum up to the BAP
Later
Brendan

[Turbo Bronco II]

I ordered a BAP sensor today. Let's hope that will fix the prob.

[Turbo Bronco II]

I installed the new BAP sensor but that didn't fix the problem. It idles good and cruises well but once you get on it and it starts to boost it craps out.I don"t know how a turbo charged engine can run right if there isn't a sensor for reading manafold pressure? I've read my EEC pin-out and found pin 32 is for boost controll but but im not having a problem with controlling my boost. Any ideas??