My question.. is it possible to get a 02+ WRX ECU to function inside a NA 00RS with a reflash from Enginuity? Why? My 00RS is NOT reflashable, and I want to get better results from my many mods.

I know the ECU Pin outs don't match, so it's not a plug-and-play option. But, I also noticed that almost all of the ECU Pins on an 00RS match a pin on the 02 WRX. In theory, one could pull the pins from the 00RS wire moles, and insert it into the correct position of the WRX wiremolex. (in short - do a pin matching re-wire).

The big catch is going to be the lack of a MAF sensor on my 00RS, but if thats the only gotcha, should it not be possible to install a MAF?

Perhaps, I would need to swap a couple of sensors too? Like the front 02, and install a EGT? Perhaps a WRX fuel pump controller? But, thats easy stuff.

So.. if the WRX ECU (Denso) is somehow compatible with a NA 00RS, then it should be possible to use OpenECU and Enginuity to design a reflash that would work? WRX ECU controlling a GC model 00RS!!

Is this sounding possible? Or am I smoking crack here?

Shane.

Sounds like a fun problem. Then again, lots of work for minimal gains?

I don't think it would be minimal gains. In my case I have a CAI, full header+cat-delete+exhaust and delta cams. I know that EM is holding back quite a few more ponies. Plus, I'd like to be able to run E85, and for that I'll need bigger injectors and the ability to control them. I've been thinking EManage, but re-flash would be preferred.

I don't think it would be minimal gains. In my case I have a CAI, full header+cat-delete+exhaust and delta cams. I know that EM is holding back quite a few more ponies. Plus, I'd like to be able to run E85, and for that I'll need bigger injectors and the ability to control them. I've been thinking EManage, but re-flash would be preferred.

You sure as hell have put lots of thought into benefits. I'm sorry I can't help you do it. Though from an Enginuity thread, there might be some cheap alternatives.

http://www.14point7.com/RICE/RICE.htm

wideband + fuel + timing control that you might be able to leverage for cheap.

Good luck man!

I've thought about this as well, and not only is the holdback looking to be the MAF, but also the front O2 is different signal-wise (been comparing the ECU pinout sheet's specified values). Supposedly you can turn off all the TGV codes, the EGT code, etc, but you would definitely have to install a WRX fuel pump controller, and more than likely install a 2.5bar MAP sensor.

I've thought about this as well, and not only is the holdback looking to be the MAF, but also the front O2 is different signal-wise (been comparing the ECU pinout sheet's specified values). Supposedly you can turn off all the TGV codes, the EGT code, etc, but you would definitely have to install a WRX fuel pump controller, and more than likely install a 2.5bar MAP sensor.

You can change the O2 sensor values with enginuity but the ECU might still have a problem with a different sensor. But another thing, does the 00 RS have coil-on-plug ignition? Because my 98 RS does not, and I thought they used a waste spark ignition until atleast 2002. You would also need the wrx fuel pump controller and install the map sensor.

At this point I still think the E-Manage Ultimate is a better option. Or he could go with the Hydra Standalone (there are plug-and-play options for this)

So... it looks like I'd need to swap in the fuel controller and the front o2 sensor.. no biggie there. And perhaps the 2.5 bar map sensor, but enginuity might be able to help there anyway. Plus, I'd have to add the MAF to the intake. Thats ok, I like that idea just cuz I'm a bigger fan of a map/maf car than a map only car. Then wire in the WRX ecu and go to town with Enginuity. I wonder if the cost is going to be too high now?

Not a simple setup, but I think a rather good one. There is no doubt that the WRX ECU with Enginuity makes for a good and flexible setup. But, then again, so does the EManage Ultimate.

As for Plug-and-play options for an 00RS? Like what? I didn't think there was? The Hydra has a P&P system? Is it WB O2 closed loop capable?

The thing I like about an EManage and/or a reflashed WRX ECU is it's closed loop control. I like the idea of having the ECU correct using the stock WB o2 sensor. Plus, adjusting LTFT and STFT when in openloop to adjust for weather changes and stuff like that.

Yeah, my mistake about the ignition, as well. You'll need to run 4 coils somehow, whether you manage a coil-on-plug deal, or just end up running 4 coils (use your imagination).

PnP solutions or not, you still have to deal with emissions testing in areas that require it (like the one I'm in).