I have an 88 SE non-turbo. The engine took a poop the other day, no compression in the rear rotor.

So I want to pull the engine and decide weather or not to rebuild it. I have never worked on these engines before, but I am a decent mechanic and have the tools. I have the factory manual and a chilton’s. I was doing just fine up to the point of removing the engine wiring. They make it sound so easy, but it looks to me that the wiring runs under the intake manifold and you must remove the intake manifold and all the vac lines to pull the engine.

Am I missing something here? Or do you pull the engine after you remove the intake and all the other crap up there, and then reinstall the new engine without the intake and all the vac lines ect?

 

There is 2 ways of doing it.

Pull the harness with the engine or just the engine.

You can pull the harness with the engine by going inside the passenger side and pulling up the floor board and unhooking the harness from the ECU. Then feed it up through the firewall hole and lay it on top of the engine.

Unplug the drivers side harness(main harness) and yank it out.

The main harness has connectors to the Alternator,oil pan, and transmission.
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OR
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You can remove the Upper manifold and remove the injector plugs and other plugs there. Then remove the harness from the engine leaving it inside the car.

This make the engine removal a little easier since there is a lot less inside the car.

Just undo the main harness stuff again and yank.

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I pulled my engine without the upper manifold on but plan to install my turbo engine with the harness already hooked up so I just fee a wiring harness through a small hole instead of connecting everything in the car which is harder(PITA).

 

i just bought a tII engine im going to do a engine swap from my n/a to tII well the engine i just bought the wiring harnes is cut but not much do i need to buy a new harness

 

91mazdarx7

it depends on what is cut from the harness - a little more decription please however i would simply buy another harness, if you're going to the trouble of swapping in a t2 then you probably want as clean of an engine bay as possible, correct?

 

yea i was thinking that i should just get the new harness but wanted to double check first thanks

 

I bought a semi bad harness for my TII swap and went through it resoldering and connecting pieces. I also took off the old wrapping and redid it.

Much better looking now.

 

You should get a standalone EMS If you are going from NA>TII...It'll replace the entire Harness. It's what I did.