Topic: 22R to 22RE EFI swap questions

[Volcom]

Fuel tanks. 
I know the tanks need to be swapped.  I take it the rubber fuel lines connecting the tank to the metal hard lines need to be swapped as well but what about the metal lines?  Yea-Nea?  Are there any rubber lines in the engine compartment that need to be swapped as well?

AC vs. No AC
Neither truck has AC.  My friend may be swapping his 22RE to the 3.4 V-6 and he isn't going to use the AC.  Are there major differences in the wiring harness for the AC?  Is it something I can just wire in myself after the fact?

22RE throttle cable
Do I need the throttle cable from the 22RE swapped into my 84?  I have heard the EFI cables are longer.

W56 tranny and top shift t-case
Are the holes in my 84 (22R / G52 tranny / forward shift case) going to line up with the W56 and top shift?  No biggie if they don't but was just curious.

Thanks for letting me the newb ask the 100 questions 

[mudmaster]

Throttle cable, YES. Sorry don't know about the rest

[Volcom [OP]]

Throttle cable, YES. Sorry don't know about the rest

Cool!  Thanks!

[Volcom [OP]]

Anybody else 

[Phazertwo]

yes you will need the metal lines, because they have the flanges for the rubber lines.  they screw together JUST like a really big break hose.
When I did mine the hoses were SHOT, so I but the flanges off and went to checker and got EFI rated fuel line, and some hose clamps and never looked back. (BTW napa will charge you 2 legs for the EFI line, go to checker its MUCH cheaper!)

There are differences in the AC vs No AC harness, However its only a switch.  However you will have to add heater core deal under the dash, and plumb it to get the AC to work.  That pretty much means that you will need the dash out of your Buddy's truck too...

Yes you need the 22re cable.  $60 at the yota yard, $80 at the dealer (F***ING YOTA YARD!)  other junk yards will have it cheaper.

Yes you will have to modify your floor boards for the top shift t-case.

PZ

[Volcom [OP]]

sweet, thanks for the reply!  How's your truck running?  Have you done anything else to it lately?

[hopper]

There are differences in the AC vs No AC harness, However its only a switch.  However you will have to add heater core deal under the dash, and plumb it to get the AC to work.  That pretty much means that you will need the dash out of your Buddy's truck too...

I am getting ready to buy both a new dash and a/c parts for my non a/c '85 Pick-up.  So what all problems will I run into trying to do this?  What will need to be done to easily put a/c in my truck?  I live in Las Vegas where in the summer it can get up to 120 degrees and I NEED a/c.

[Phazertwo]

I am getting ready to buy both a new dash and a/c parts for my non a/c '85 Pick-up.  So what all problems will I run into trying to do this?  What will need to be done to easily put a/c in my truck?  I live in Las Vegas where in the summer it can get up to 120 degrees and I NEED a/c.

I really have no clue, I have never done it.  However if I had all the parts that you do I would go for it! If you get EVERYTHING than it shouldn't be tough.  I know that you have to drill through the firewall in two points, but doesn't look too hard.  For a switch I would just wire one in, all it does is turn the a/c compressor on/off, your heater fan does the rest.  Just make sure to turn it off when you are done with the a/c other wise you are just burring $$$

PZ

[irok4runner]

wanted to see how your project was going phazer....i too am right in the middle of the same swap...87 carbed to a 90 EFI setup.....have you gotten through the wiring? any pics?

[Rob_O]

I'm doing something like this myself, mixing an '84 truck with an '86 EFI system and some other stuff.

The 89-95 efi system is the easiest to swap. All the wiring for the engine/efi are integrated into the engine harness and you can hook up everything at the chassis plugs inside the cab. The earlier system has the wiring for the coil/igniter and the MAF built in the chassis harness and you have to swap everything or make a sub-harness for those items. I'm swapping everything on my '84 body because I have all the stuff, I've also done the sub-harness thing on a 94 2wd body/86 4wd frame swap.

You need the tank with pump and the supply lines with the threaded fittings. Also need a return from the fuel rail to the tank

You also need the RE throttle cable.

The AC wiring should already be in the harness. It appears there's a section of ductwork in the heater system under the dash that can be replaced by the evaporator box, I can't verify because I don't have an AC equipped truck to look at - just pay close attention when you're stripping off the AC stuff and you should be able to figure out what you need pretty quickly

Can't help you with the shifter stuff, haven't been there yet

[8D3TOY]

Good info on RE swaps, my 83 has AC and although it blows cold it eats horsepower and gas and the compressor cuts out at idle so if you are at a red light or in traffic it starts pumping swamp gas into the cab, I used to rev the motor in traffic but people in Cali are weird and may shoot you for it.  I am looking for an EFI donor truck to do a swap so keep it coming.

[Volcom [OP]]

I'm doing something like this myself, mixing an '84 truck with an '86 EFI system and some other stuff.

The 89-95 efi system is the easiest to swap. All the wiring for the engine/efi are integrated into the engine harness and you can hook up everything at the chassis plugs inside the cab. The earlier system has the wiring for the coil/igniter and the MAF built in the chassis harness and you have to swap everything or make a sub-harness for those items. I'm swapping everything on my '84 body because I have all the stuff, I've also done the sub-harness thing on a 94 2wd body/86 4wd frame swap.

You need the tank with pump and the supply lines with the threaded fittings. Also need a return from the fuel rail to the tank

You also need the RE throttle cable.

The AC wiring should already be in the harness. It appears there's a section of ductwork in the heater system under the dash that can be replaced by the evaporator box, I can't verify because I don't have an AC equipped truck to look at - just pay close attention when you're stripping off the AC stuff and you should be able to figure out what you need pretty quickly

Can't help you with the shifter stuff, haven't been there yet

Thanks for the tips Rob O!  I plan on getting my junk running this July.