tusker

Hi guys,
I just bought a '94 Toyota Xcab pickup with no engine in it, but originally had a 22re. I've read enough on here to know that not just any old 22re will swap directly into it, but haven't figured out the reasoning behind it. What year of 22re will basically plug straight in to the wiring harness of the '94? I have a line on a 22re out of an '86 with the complete wiring harness. Will this work if I'm willing to splice the correct plugs on? If I use an '86 engine, do I have to use an '86 computer?

I have also found a 22re out of a '93 2wd pickup. No p/s, no a/c, both of which are on the '94. I know the oil pans are different, but what else? Would this be better to use than the '86?

Educate me, please. Thanks in advance for your help,

waskillywabbit

iTrader: (-1)

Direct plug in, 94 22RE.

Another 22RE (not 79-82) get the engine, wiring harness and ecu if possible. Make life easier.

DeathCougar

iTrader: (23)

Any 22R and 22RE long block from 1985-1995 will work. You may need to swap wiring and possibly intake and few sensors, but the main engine assembly will work from 85-95.

tusker

The thing is, I don't have any of the sensors, etc from the '94. I just have an empty engine bay with a wiring harness from a 22re hanging there.

Is the computer from an '86 compatible with the other parts of the '94 electrical system (guages etc)?

tusker

Are there any physical differences between 85-89 22re's and 90-94's? I noticed that the HP rating is different between the two (105 vs 112) Is this because of the computer or sensors, or is it something internal?

DeathCougar

iTrader: (23)

Its all fuel and computer related. The 86 computer will NOT work with the 94, nor will the injectors, wiring, etc.

tusker

Will the '86 computer work with the non-engine related electrics of the '94? That's my main concern at this point. I have access to the '86 engine with wiring pigtails for every sensor, etc. I also have access to an '86 computer.

So, can I safely assume that I could use the '86 computer and splice the '86 pigtails on the '94 harness and expect it all to work?

Thanks for your help

DeathCougar

iTrader: (23)

Again, NO you cannot just splice on the plugs and have it work correctly.

94's have more sensors, in different locations (including o2, and its an OB1 system) and require different electronics than the 86 to function properly. You need to find someone with a donor 94 to get all the electronics you need for your truck.

tusker

Ok, so now that I understand that only a '94 will work, are there any other Toyota models that offered the 22re in '94? Celica, possibly?

tusker

Would the '93 2wd engine be a better option than the '86 or am I still going to run into problems with the computer/injectors being different?

If not, why would toyota change their engines so much as to make them incompatible?