3rd Gen. Swap Thoughts...., Anybody have some input? Options

[Silver94CelicaOw...]

Regarding the installation of the 3rd gen 3SGTE, does anybody know if the body harness is compatable at all with the ST204 chassis without rewiring the harness much? I've given this some thought lately after not finding any search results on the matter....so maybe?? Maybe not?

I think I'm holding off on a swap until I have enough money to buy all the components at once for times sake...but I'd like to have a 3SGTE with a W2A intercooler when I get my clip, be it the 3rd gen or 2nd gen RC. 3rd gen appeals to me because its something different, but this also means that I'd probably have to face alot more unknowns along the way. However, the wiring aspect may be an easier task because of the chassis it came from.

Any knowledge or insight on the wiring is appreciated.

[scothaniel]

In the engine bay, which plug in the fuse box was it that needed to be rewired

The engine harness has only one plug at the fuse box (for the 6th gen Celica's) - EA1. And I just had to add one wire from the old 7A harness to this pug for radiator temp switch. Both 3rd gen 3S engine harnesses (turbo and non-tubo) will be missing the radiator fan temp switch wire, since its in the body harness for those cars. If the 5SFE has the temp switch in the radiator, then you wont have to worry about this wire.

at the ECU, did you have to rewire 3rd ECU plug

3rd plug being the one with the injectors, or the one with battery and power? I used a 3SGTE ECU with a 3SGT harness, so I had a bit more re-pinning then usual. For the GTE, there will be a couple of changes for the fuel pump, since the US cars didnt have an relay for high/low pressure.

the interrior plugs might be a little different tho, because your gauge cluster donst have stuff like the oem boost gauge.

I think I removed 4 wires from the interior plugs (II1, II2, IJ1) to mate up to the 3SGE harness. A couple of the wires were due to the options on my car (no ABS, Cali-emissions, etc).

I've used the ST185 engine harness on the ST205 motor in my all-trac and it only required moving a few pins on the ECU and a couple of connectors around on the harness. Should be the exact same for installing an ST185 motor into a 6th gen using the ST205 harness.

This post has been edited by scothaniel: Jan 19, 2006 - 10:33 AM