Powerfc For R32 Gts-4...

[petgts4]

I tried searching , and I read the FAQ on the powerfc which was very helpful, but it didn't answer my specific question...

I'm going to get a powerfc for my R32 GTS-4, and just wanted to know if the normal RB20 version (AP Engineering) is the one for me.

The ATTESSA has an independent computer under the parcel shelf in the boot, right? However, would the 4wd system also incorporate the use of the standard ecu for certain functions? I'm asking this because i'm wondering if the rb20 powerfc would take this into consideration if in fact the GTS-4 ecu is involved with making ATTESSA work.

Even though you can modify the rb26 powerfc to use with the rb20, apparently the only things that need to be modified have to do with injectors and not anything to do with ATTESSA in the rb26 version. Even so, i just wanted to know if the normal rb20 version will work fine with my gts4!

Any help would be great!

Thanks.

Edited May 28, 2006 by petgts4

[sky30]

I run a stan-alone microtech in my GTS-4, this hasnt affected the operation of the 4WD, so the stock ECU must not have anything to do with the ATTESSA computer.

[CruiseLiner]

the main ecu gives the attessa ecu 3 wires and they are tacho speed signal and throttle signal + and throttle signal -

they can be hooked up with aftermarket ecu's somehow, unsure exactly though.

[paulr33]

you could just wire them up in parrallel. i had to do this to make a-lsd work in my r33. it needed the TPS signal, so it just tee'd all 3 wires together

from engine, to alsd puter in boot and to ecu

[petgts4]

Isn't the power fc a plug-and-play type unit, where you basically use the old ecu harness to plug straight into the power fc? Therefore the wires that also connect to the attessa ecu would remain the same because no wires would be modified, right?

Then you'd just get your car all tuned up...

Edited June 2, 2006 by petgts4

[CruiseLiner]

Isn't the power fc a plug-and-play type unit, where you basically use the old ecu harness to plug straight into the power fc? Therefore the wires that also connect to the attessa ecu would remain the same because no wires would be modified, right?

Then you'd just get your car all tuned up...

hey mate, the engine harness would have the wires intact but the ecu will have no pins for the 4wd wires as the ecu is meant for rwd rb20's.

its simple to hook up anyway once u find the correct wires.

[petgts4]

Awesome, thanks for that.

Now i just have to find a power fc at the right price!

Cheers guys.

[sky30]

I got a plug-in microtech, and just plugged it in, didnt hook up any wires for 4WD.

[petgts4]

Interesting... Maybe the microtech has provisions for the extra wiring as cruiseliner said.

Well, i guess if 4wd doesn't work when i plug the power fc in, then i'll just hook up the necessary wires.

Thanks again guys!

Cheers.

[petgts4]

I bought myself a power fc yesterday and installed it... the 4wd works perfectly, and so does everything else. Just letting you guys know that i didn't have to do anything else apart from simply installing the power fc.

Just have to get a tune now...

[Interloper]

keep us posted how you go with the tuning!

i was gonna get a AP PFC but got my stock ecu tuned instead...