i have a 86 toyota turbo pickup that i am going to swap over to 22re. it has the stock 22ret motor and evrything but i wanted to know if the ret harness would work with a 22re. i was planning on useing the turbo upper and lower intake manifolds. i ahve a 22re computer and was thinking it should work but i have never heard of anyone doing this and wanted to know if it would work. i am on a very tight buget. i tryed to seach for it but came up with nothing. any help would be greatly appreciated.

 

The long and short of it is no. Simply because the system will be trying to find said turbo, among a host of other things.

Use the 22R non-turbo harness.

 

ok. thanks alot DC

 

I would say that Death Cougar is right when it comes to later models of Toyotas (Generation 3 pick-ups and generation 2 4Runners and up), but I disagree with his statement for earlier models.
For example,if you read the problems that guys are having with trying to convert newer trucks to full instrumentation, sometimes the Tach wires are not there, etc, but in earlier trucks this is not the case. Toyota may have made harnesses with different part #'s, but they all contained the same wiring. For example, my 89 4Runner did not have full instramentation, when I changed clusters the only modification that I had to make was change the oil pressure switch to an oil pressure sender, all of the necessary wiring was there.
If you look at the ECU diagram in the FSM, it shows that there are several differences in the 22-RE computer and the 22-RTE computer. Both computers have three plugs, one with 10 pins (10p), one with 18 pins(18p) and one with 14 pins(14p), but they do not use exactly the same circuits.

10p - 1 is NSW - Neutral Start Switch (22-RE only)
14p - 9 is B/K - Brake Switch (22-RE only)
18p - 17 is TIL - Turbo Indicator Lamp (22-RTE only)

I've got about 10 Toyota ecu's handy that I looked at, I didn't look specifically at the 89, or 86 22-RE ECU's that I have (they are buried in my shed), but I looked at an 85 22-RE auto and they all have the total # of pins
possible coming from inside to outside. Ex. the 10p has 10 pins on the computer side, but it may not have 10 wires on the harness side, for the 86 22-RE or RTE harness there are only 9 wires 10p-10 is empty.

As I said above the NSW (green wire for 86) and B/K (Green / White wire for 86) are not used in the 22-RTE setup, but the required wires for these circuits are still in the engine and the body harnesses for the 22-RTE. I just checked my harnesses, I've got them on the garage floor!
I don't think that you will have a problem with using the 22-RE computer with a 22-RTE harness, I'm know the wiring is there, but the NSW and B/K switches may not be, you may have to score these from the junk yard.
Reguardless of what wiring is present, the ECU is only going to look for the circuits that it is programmed to use.
The TIL light in your turbo dash, should not be an issue with a 22-RE ECU. Make sure that you remove the vacuum hose off of the boost sensor, that is what turns the TIL light on and off, but I'm not sure how the boost sensor worked, whether it turned the light on or off with boost, so if the light is on just take the bulb out, the 22-Re computer has nothing to do with that circuit.
Your intake manifold is a non issue, but if you change to a 22-RE you will have to change AFM (different voltage perameters) and the Injectors (too large for a N/A engine)

You said that you are on a tight budget, may I ask why you are going to go from 22-RTE to 22-re?
By the way if you do go this route, I'm looking for an 86 boost sensor.

 

I put a 22re from a 93 pickup into a 86 4runner that had a 22rte, and it runs mint. The only thing i found myself doing was staying with the alternator,starter, and etc from the 4runner because they had the plug to fit the stock harness. Also changing bellhousing plate on the back of the motor, also i stayed with the turbo upper intake.

 

I see no reason it wont work,i have an 86 toy 22ret 5 speed pickup that has non working turbo that i plan to pull off the turbo and block off the coolant and oil lines to the turbo,remove turbo exhaust manifold and replace with 22re exhaust manifold,install new headpipe,connect new air intake pipe from throttle body elbow to afm.i see no reason why motor will not run better.yes i know the turbo motor is a lower compression motor.top end was redone 10,000 miles ago.also i can always change the pistons out to a 22re piston.

 

it should work... You might have a light or two on though.

Turbo intake means Turbo injectors unless you've changed them out... It will run too rich get 22RE injectors.

 

some one did the swap from turbo to re in mine I noticed in mine that when the switch was made there were small orficed restricter plastic discs in rubber lines off fuel tank this kept blowing return line off regulator check your lines!

 

thanks alot guys!!!! im just guna go for it and see what happens. the reason i am sitching from ret to re is because the turbo is cracked and dont want to deal with finding a new one to fit and what not. i alredy have a motor i picked up for 50 bucks and i can get most of the efi stuff from a buddy for free. now this isnt going to be happening until spring comes around cause i have no garage. but when i do it ill make a build up to show how it worked. thanks again guys!

 

If a cracked turbo is the reason for all of this work, it would be a heck of a lot easier to replace the turbo. Having said that I've got a CT-20 off of my 86that I'll sell you. I don't think that it has any cracks and shaft play seems minimal, but I haven't dis-assembled it or put it through the parts washer yet. I'm not going to use it on my rebuild, I'm going with a Steed Speed manifold and a t3-t4 hybrid. I've also got a CT-26 (with a rebuild kit) if you want to upgrade and go that route

 

I need a RET harness. Anyone wanna get rid of/sell one?

 

thanks hadmatt for the offer. that is one of the reasons i am but the motor needs rings and possibly rod bearings it has alittle lower end noise. iv just had enough with this motor and want to go 22re.

 

can i buy the RET manifold and plenum from you?

 

Remove the nuts specified in red. Then look inside the part specified in blue. I guarantee you will find cracks inside.

 

im not pulling my truck appart yet. but when i do ill have it for sale

 

The injectors are the old metal clip style... I don't know if you can get the ones you need with that type of connection...

You're taking a mighty big gamble with $50 engine... Sounds like you're setting yourself up again.


Have you heard it run? Know what oil pressure it has? Compression?

 

o yea its a great running motor. i helped the kid rebuild it and run it in his truck. its a 88 motor with 120,000 and we just rebuilt it. hes pullin the motor for me and has a guy that needs evrything but the motor. i have a 87? lower intake with injectors on it. so that should work fine. i hope haha.

 

RE on RTE electronics works PERFECTLY FINE.

You know what happens when the the RTE ECU doesn't see boost pressure? It simply runs in the lower part of its map. Your RTE motor doesn't run in boost all of the time. Most of the time, you're cruising around in vacuum just like you would in an RE

Oh, by the way, I have an RE running on RTE electronics. I have the RTE intake manifold, on it, and all the sensors, and most importantly, the RTE injectors.

 

do the ret injectors run good on an re???? i thought they would but then it was said they would run rich. but evrything works like it should? that would be great if they did. thanks alot rob i realy apprecite your info

 

it will prolly run fine... I just think you're shooting yourself in the foot running them b/c the mileage won't be as good as if you ran RE injectors...

You're overfueling for no reason...