22R to 22RE swap FAQ

[Izeloz]

Emissions should not be an issue. You WILL have to have an O2 sensor, though, so make sure your Thorley has a provision for that or you may have to add one. Used EFI stuff can be used unless it is obviously bad. Just clean them well with brake cleaner/carb cleaner/whatever. I am going to have my injectors cleaned and balanced, so you may want to consider doing that as well. Other than that, it sounds like you're pretty good to go.

[Dickdog]

I did my EFI swap a year 1/2 ago on my 83 22r. wired plug three into the 83 harness. used two relays one for the ecu the other for the mass air flow sensor to run the 1999 ford in tank fuel pump. engine does lack alittle power. I going to put a efi cam in it later on this year to see if it would make a difference. and I still got to drill and tape a knock sensor hole
but other than that I drove it every day for about a year been do due to swaping axles.

[Dickdog]

oops didn't prove read ............correction its been DOWN for axle swap.

[2RowTC4Runner]

Originally Posted by Dickdog

oops didn't prove read ............correction its been DOWN for axle swap.

When that happens, you can use the "Edit" button at the bottom of your post.

[NY_crawler]

Originally Posted by gtxracer

Oh, and anything I should do to the used units? Should I get the sensors checked/cleaned and get some new injectors or anything?

I would get the injectors cleaned while they are out and take a look at the upper and lower intake and maybe clean them if a lot of that black stuff is in there. I noticed on mine that the black stuff was almost completly blocking some of the ports on the upper intake.

[EKW]

Does anyone know how much of this info can be applied to a 94 22re? I am going to install a 94 22re into my 82 and I need to know what I will need from the wiring harness. I already have the harness, engine, and fuel tank out of the donar truck. Just by looking at the harness it looks like the engine controls are in a separate fuse box that is under the hood, but I am sure this ties into the interior fuse box somehow. I am going to try to get a wiring diagram this weekend. If anyone has any tips on this please post them up.

[TroyToy]

the cam and rocker ass will interchange from 75 20r to 95 22re
sure there a little diff thru the years but same application
as far as 22r carb and 22re being different cams i think there all the same

[kr4zy]

if i have all the parts and a mecahnic who will do the swap, how long is the process about?
how long has it taken you guys who arent ASE Certified mechanics?
What is the price range on this?

[toyguy1986]

Does anyone happen to have the part # for the 85- 86 ECM?

[brownbagg]

all that info is in search "ECM"

[toyguy1986]

Can anyone tell me what is the fuel pressure VSV, where is it located, and what does it do?

[2RowTC4Runner]

Originally Posted by Cal Mini Trucks

the cam and rocker ass will interchange from 75 20r to 95 22re
sure there a little diff thru the years but same application
as far as 22r carb and 22re being different cams i think there all the same

Lift is the same but EFI and carb cams have different durations both on intake and exhaust.

Stock Cam Specs:
For 1975 and up 20R's and non EFI 22R's:

Intake Duration- 272 degrees
Exhaust Duration- 248 degrees
Intake Lift- 10.1 mm
Exhaust Lift- 9.7 mm

For EFI 22R's:

Intake Duration- 248 degrees
Exhaust Duration- 280 degrees
Intake Lift- 10.0 mm
Exhaust Lift- 9.7 mm

This is where I took the info:
http://www.off-road.com/toyota/tech/...toy_motor.html

[2RowTC4Runner]

Originally Posted by Dickdog

engine does lack alittle power. I going to put a efi cam in it later on this year to see if it would make a difference. and I still got to drill and tape a knock sensor hole
but other than that I drove it every day for about a year been do due to swaping axles.

You absolutely need the knock sensor. Yes your motor will run without it but it will be in what's commonly called "limp in mode".

You must find that your idle is unusually high. Once you plug in your knock sensor it will idle normally and will also have more power. Without it your computer is only giving the motor a preset mixture that's designed to get you to the nearest garage.

here's a picture of where I drilled and tapped my block:
http://web.ncf.ca/ez273/20R_Knock_sensor_location.jpg

You can't put it there if you ever use forged pistons though. If that was the case I would put it on one of the lower bosses that you see at the front of the motor.

Luc

http://web.ncf.ca/ez273/index.htm

[Dickdog]

I thought it was running in limp mode. taking the cab off soon and I 'm going to drill that knock sensor hole.

[toyguy1986]

Still trying to find out about the fuel pressure VSV, what it does, where its located and what it is?

[Lowtorious]

The fuel pressure VSV will be located on the valve cover; it will be 1 of 2 or 3 depending if you have A/C and/or 4WD. You will have to trace vaccum lines to be 100% sure which VSV is which. This should be really simple; one of the lines off the fuel pressure VSV will take you right to the fuel pressure regulator (FPR) (UFO; flying saucer looking device about 2" in diameter at the rear of the fuel rail). It's works with the FPR, adjusting fuel pressure in the fuel rail upon hot starts. Theres a few of us that don't run one and experience no difference in performance (myself included).

[h0nke]

im converting my 22R over to 22RE with the Simple Digital Systems setup. Anyone know if i will be OK to keep my carb tank and run a Master E2000 electric fuel pump? someone told me i need a 22RE fuel tank and still an external pump? any help is appreciated. thanks.

[Izeloz]

If you run an external pump you can use a carbed tank. Whoever told you that you need an EFI tank is wrong. The only difference is that the EFI tank has an in-tank unit.

[NY_crawler]

I have still have the carb tank in my truck and run an inline fuel pump. Works just fine.

[h0nke]

Originally Posted by NY_crawler

I have still have the carb tank in my truck and run an inline fuel pump. Works just fine.

Good to know. What inline pump are you using?

[dcg9381]

I've heard also that a carb'd tank (unbaffled) won't like the high pressure of an EFI pump at low fuel levels. The return creates too much air. The solution is a surge tank.

I don't want to deviate from the 22r -> 22re thread too much, but it sure seems to me that it'd be a lot easier to bolt on the EFI manifold, add an 02 sensor, a fuel pump, and then drive the whole system with MegaSquirt....

[Hemenechi]

just a quick question about the wiring. if i were to put a whole wiring harness from a 22re truck. from bumper to bumper... would i still have to do "surgery" to the wiring job? or would it be all set up for dropping in a 22re (whole motor).

and would it matter if the wiring harness is from an auto or a stick?
i have a stick but im getting a donor truck for free and its efi but its an auto.

reason why im asking is because i need to put in a whole new wiring harness anyways just figuring if i should do a 22re or an 22r harness

well for the exceptions of putting in the coil fuel lines and tank?

[Izeloz]

You COULD pull the entire harness and it would work, BUT I don't think the auto harness is going to work that well for you unless you get a manual computer to go with it or jumper the ETC and other auto trans.-specific pins in the harness to bypass the auto tranny portion of the harness.

[Propane]

Or...if all the wiring isn't working out for you-consider a propane system. Be done in an afternoon

[teambeer1]

just picked up 22re motor from junk yard out of an 88 2wd. Got the whole motor, harness, and computer. From what I'm reading all I need now is an external fuel pump to run my 84 tank. Is there anything else other than fuel lines? oh yeah its going into an early 84 4wd.