Author Topic: 94 2wd EFI cab work with carb? (Read 2400 times)

DeMented Toys · « **on:** Jul 23, 2007, 12:43:51 PM »

Anyone know what would need to be changed to run my Carbed motor in an EFI cab? What I would be doing is swapping my non-EFI cab that was damaged durring a rollover with a 94 EFI 2wd cab... I'm not sure if I could just let the EFI wires hang, or what... The truck was a Non-EFI 87 cab sitting on an 83 chasis with a 22R and Weber carb setup. I don't want to go EFI, because the engine runs strong and I don't care if EFI runs upside down or not, I don't like messing with all the Emmissions and O2 sensor, TPS, vaccum line, ect.

jimbo74 · « **Reply #1 on:** Jul 23, 2007, 12:49:23 PM »

jsut do a straight cab swap. pull the entire harness and everything from whatever is connected to the running truck

DeMented Toys · « **Reply #2 on:** Jul 23, 2007, 12:53:03 PM »

I thought about that. I thought there may be a way to not have to swap the wiring. Like maybe just swapping the cabs and not hooking up the EFI stuff. But don't know if that would work. I would rather find a Non-EFI cab than have to swap the wiring...

gtoyonrocks · « **Reply #3 on:** Jul 23, 2007, 01:14:02 PM »

Do you have to save the smog junk?

? If you don't, it's really straight forward, the engine actually only needs a couple of wires.

DeMented Toys · « **Reply #4 on:** Jul 23, 2007, 01:16:01 PM »

Quote from: gtoyonrocks on Jul 23, 2007, 01:14:02 PM

Do you have to save the smog junk?? If you don't, it's really straight forward, the engine actually only needs a couple of wires.

Nope! That's whay I want to stay with my Weber carb setup. But I would still need the guages to work and that sort of thing... And I didn't know if how ignition would work...

jimbo74 · « **Reply #5 on:** Jul 23, 2007, 01:28:32 PM »

there really isnt that much wiring at all... and the guage clusters wont matter, they are the same for carb and efi

you are only dealing with the main chunk to the computer, a couple connectors that break off at the dash level and then a chunk on the drivers side that goes to the fuse box over there in the kick panel and up to the steering column

gtoyonrocks · « **Reply #6 on:** Jul 23, 2007, 02:36:09 PM »

Yea, there is very little wiring after you get rid of the smog junk.

DeMented Toys · « **Reply #7 on:** Jul 23, 2007, 04:23:50 PM »

So can I just let those extra wires hang out there in case I ever want to EFI?

gtoyonrocks · « **Reply #8 on:** Jul 23, 2007, 04:28:41 PM »

I suppose you could, but I wouldn't recommend it. It would look like a mess. You could always reinstall the harness if you desided you want to go with fuel injection. You may want to think about running propane, it's really simple and works bitchen.

DeMented Toys · « **Reply #9 on:** Jul 23, 2007, 04:33:56 PM »

I mean... I can use the existing wiring that is already in the EFI cab without having to swap the non-efi harness? It won't look much different as far as messy goes if I cover and zip-tie the extra stuff out of the way... I'm just trying to figure out if the ignition, ect would work with a carb since the EFI ECU is there...

gtoyonrocks · « **Reply #10 on:** Jul 23, 2007, 04:57:35 PM »

I would probably be easier to just rewire the carb motor and leave the fi haness in the truck, but it would look a little messy. The ignitions system on the fi truck is completely differant, there is no way that you can use the ignition system harness from a fi truck on a carb truck, at least not that I know of.

DeMented Toys · « **Reply #11 on:** Jul 23, 2007, 05:03:16 PM »

Oh, got ya. I'd have to use the carb harness with the EFI harness to hook up the motor... Yeah, that would be alot of wires crammed in there... Guess I may just gut the EFI cab and use my non-EFI harness... Or if I have to I could just run EFI, I just wanted to keep my Webber carb setup.

gtoyonrocks · « **Reply #12 on:** Jul 23, 2007, 05:23:38 PM »

I hear ya, just be careful when you remove it, then you can always use it to go fi if you deside to in the future.

DeMented Toys · « **Reply #13 on:** Jul 29, 2007, 10:08:56 PM »

I still haven't completely figured this out... Has anyone actually tried running a carb with an EFI wired cab? Or does anyone know for sure what would need to be done to run a carb with an EFI wired cab?

I know I could probably swap my Non-EFI cab harness, but if there is a way to do it, it would be better to use the EFI harness that is already there, in case I ever wanted to go EFI...

I have a 1994 2wd EFI cab sitting here all ready to be swapped onto my modified 83 chasis... It would replace the current 1987 Non-EFI cab that was damaged durring a rollover... Anyone know for sure about this before I go start pulling wires?

DeMented Toys · « **Reply #14 on:** Aug 08, 2007, 09:07:52 PM »

Okay, swapping the wiring harness... Hope the guages and dash stuff connectors are the same...

gtoyonrocks · « **Reply #15 on:** Aug 09, 2007, 09:09:44 PM »

The wires for the gauges will be differant but with a factory service manual it's pretty cut and dry. Good luck, post some pics of that thing.

DeMented Toys · « **Reply #16 on:** Aug 13, 2007, 06:59:49 PM »

Here are some pics. The donor cab is a 94 2wd. Which is going on an 83 shortened longbed frame... To replace the Punisher Yota 87 cab that was damaged in a rollover...

DeMented Toys · « **Reply #17 on:** Aug 13, 2007, 07:06:24 PM »

The interior was a mess. at least an inch of rat poo.

DeMented Toys · « **Reply #18 on:** Aug 13, 2007, 07:09:51 PM »

Punisher Yotar stripped for wiring harness swap.

DeMented Toys · « **Reply #19 on:** Aug 13, 2007, 07:12:30 PM »

Donor 94 2wd cab. Ready for wiring harness swap.

DeMented Toys · « **Reply #20 on:** Aug 13, 2007, 07:16:17 PM »

I got the wiring harnesses swapped. The 87 carbed harness ignition wiring plugged right into the 94 ignition, ect pluggs on the steering collum. I need to find a guage cluster, the donor cab's was missing. Hope it plugs in too...

DeMented Toys · « **Reply #21 on:** Aug 13, 2007, 07:18:10 PM »

I call it Punisher Yotar because it has a huge punisher skull painted on the hood. When I get the cabs swapped, I can paint the new hood and it will be Punisher Yotar II.

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