Main Harness swap

[__TT__]

SO. I've been thinking. Since the revtronix chip is out, what issues would you see in swapping an entire wrx main harness into our cars? I would go ahead and just swap the guage cluster and do some dash work to forgo some issues I see there. There just seems to be more options as far as a gradual build this way.

[Legacy777]

I would say it's a pretty monumental task, but I'm sure it's doable. The main caution I would say is that the WRX has additional sensors and components integrated into the ECU and engine wiring. I believe the WRX has a fuel temp sensor, our cars do not and would require some additional wiring. ECU location & ABS may be another question. You then ride the line of how much am I going to integrate from one harness into another harness, and what components are critical to the ECU's functionality.

Like I said, it's probably doable, but there may be some issues.

I think Devon (livestrong14) may have swapped ina WRX dash/gauge cluster. Not sure if he's using the WRX ECU or not, but he may be someone to talk to about his experience.

[__TT__]

hmm. so as far as extra sensors aside from the fuel temp (should be easy). what would I be looking at? would a DOHC swap be prudent in this situation?

[Legacy777]

Honestly, I don't know off the top of my head. I'd have to look at the WRX ECU I-O to see exactly what its looking for and what other components its integrated with.

[cj91legss]

i would think that you would want to go with a whole swap. arent the cam and crank triggers different because they're newer?

[__TT__]

i truelly wouldn't mind that except for keeping my turbo block and 5mt