Swapping a '94 22re into an '85 w/22re - Pirate4x4.Com : 4x4 and Off-Road Forum
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Old 11-04-2005, 12:12 AM   #1 (permalink)
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Swapping a '94 22re into an '85 w/22re

I have searched and just want to confirm what I have read and am thinking. Since the wiring harness on the '94 doesn't match up with what I've got on the '85, I can simply swap the intakes, correct? I just want to make sure before I go about doing this. Do I need to swap the exhaust manifold as well? Thanks for the 'yes' and 'no' responses. If 'no' please explain why. Thanks, Matt
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Old 11-04-2005, 03:07 AM   #2 (permalink)
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Old 11-04-2005, 05:40 AM   #3 (permalink)
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I know on my 94 engine. The o2 sensor is down by the exhaust, and on the older ones I believe they are up at the manifold area. May run into an issue with having a bung where you need it. Not too big of a deal though.
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Old 11-04-2005, 06:17 AM   #4 (permalink)
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Yes. Switch the ecu too just in case. The injectors might have different shaped plugs?
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Old 11-04-2005, 06:28 AM   #5 (permalink)
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I put a 94 model engine in my 88 model truck. Some sensors had different plugs, but I swapped them out for the old sensors from the 88 engine. The plugs for the injectors were a little bit different, but a little shaving with a razor blade made them fit right in. Many people told me that this would not work and it would fry my computer.The only thing I had to change was the throttle body. Been to tellico twice with no problems from the engine.


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Old 11-04-2005, 06:31 AM   #6 (permalink)
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I put an '89 in my '85. Alot of differences on stuff like sensors around the block. Keep your existing harness alone. Put your '85 intake, with existing sensors and injectors, on put 'em on the newer engine. You can also use your existing exhaust manifold as well. 1 more thing, the larger water pipe that comes off the lower radiator hose may have a different bend in it, so use your '85 there as well.
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Old 11-04-2005, 08:37 AM   #7 (permalink)
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Like stated above, just swap on all your sensors form thr 85truck. While you have the new style intake on there, I would just do the Intake mod. You would only have to switch out the little butter fly thing under the TPS and switch the TPS to the 85 style to hook it up with the harmness but the link will give you all the info you will need on the mod and you will not have to take off the upper plenum.

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