help me please 85 Cab to 79 4x4 Chassis

[Craig794x4]

im putin a 1985 cab on a 1979 4 wheel drive long wheel base frame i have got it ready but there is a electrial box under the dash above the a/c box on the passenger side behind the glove box the wires goes to the engine compartment i need to know what that controls and where the wires go thank the trans hump is in and i got all the dash working including the 4x4 light

 

[HotRodPC]

Is it possibly a CA truck? Could be CCC computer ECM. IIRC, if it were ESC ECM only, that is above the gas pedal behind the instrument cluster. CCC maybe even in the same location. I've not worked on many CA truck recently.

 

[Craig794x4]

ccc truck? its a 85 would the vin number help? the box in question is behind the glove box

 

[Craig794x4]

ca truck???? my bad typo

 

[crazy4offroad]

It's the ESC box, unless you're gonna run the ESC distributor from the 85 I would just ignore/eliminate it.

 

[bucket]

That's where my ESC box is too.

 

[89Suburban]

Yup.


RETRO MODS ROCK

 

[HotRodPC]

So it sounds like it's the ESC box. There is only a small harness that comes off that. 4 wire plug to the dizzy, and a wire to the knock senseor. You can take the whole harness out if you want. It's pretty much stand alone. If you have an ESC dizzy, you'll have to keep it hooked up or twist a couple wires together to bypass the ESC ICM and make it work like a NON ESC module.

The CA I was referreing to yes, is California, and some of or most of the trucks were CCC computers, aka Computer Command Control. Those are the ones the ran the Rochester E4ME Qjets with Mixture Controll Solenoid and Throttle position sensor on the carb, integrated with ESC and an O2 sensor. GM's second OBD1 computer system after C4 system, aka Computer Controlled Catalytic Converter hence the 4 C's.

 

[RetroC10Sport]

E4ME...Not M4ME...

 

[HotRodPC]

E4ME...Not M4ME...

Doh!!! Yeah. Corrected.

 

[89Suburban]

That is the setup I used out of my '85 Malibu and transplanted into my Dodge Ramcharger. Cut the dizzys in half and mated them, ran the harness, computer, sensors and computer carb, thing ran damned good after I removed the Dodge crap and installed the GM crap.

 

[Craig794x4]

so i dont need it. i looked at my buddys 85 and a wire that comes out of the box runs to the starter and one ground. i have a aftermarket distribtor i will need to plug that in