j-spec 3SGE swappin, need wisdom Options

[crandsberry]

hey guys, aight I have got a '97 GT with the 5sfe
And on a chance occasion, i scored a JDM 3rd gen 3S-GE for under $200

Supposedly the engine was in a car and running as of last year. Unless i pull off the head and find something crazy like a blown head gasket or damaged rings ..right now ill assume it runs great.

So im going to do swap without a front clip, im a starving college kid, i dont mind scrambling for the ST202 parts i need.
The engine has manifolds, alternator, injectors, ALL sensors, and a full UNCUT wire harness w/ fuse block

so
Since the car is LHD, will the harness need to be lengthened?

Im getting a euro spec st202 guage cluster, could i potentially just use a 3SGE ECU out of an mr2?

Suggestions for mods?

thnks

This post has been edited by crandsberry: Jan 30, 2008 - 11:42 PM

[crandsberry]

Aight you can ignore my previous question. The obvious difference is the advent of the OBD2 electonics toward the end of the 1996 model year. I just found out my car its the california spec model, which makes the swap even more obnoxious.

If you want to do any kind of jdm motor swap in a 1996+ car, and are unfortunate enough to live in a state with emissions testing. You have to run the motor with your original ECU , and you must convince it that all the smog devices are present and accounted for. This is what you are up against:

Two catylitic converters, and at least two O2 sensors (each one generating its own voltage signal, and they cannot show the same values)

The EGR valve, which is not present on any jdm motor. The ecu acuates it by sending short pulses to a solonoid, then verifies it opens with another trigger, then verifies again that gas is flowing by way of another temp sensor at the mouth of the opening in the intake manifold.
Even if you manage to bypass all that, the ecu then pulls ignition timing and adds fuel whenever it 'opens ' the valve.

The EVAP system, which just requires the charcoal canister and another non-existent vacuum port on your jdm intake manifold.

Not mention the ecu logs data and keeps track of anytime your sensors go out of wack.

..craziness