XFC for mazda 3

mehc · Newbie Joined: Feb 27, 2008 Posts: 2

Hi, I'm interested in buying this for the MZ3

How does it fool the O2 sensor in closed loop? Does it intercept the voltage signal and modify it to make it think it's running the correct AFR so the sensor doesn't compensate for it?

Pardon me if I don't make much sense, I'm not an expert

Thanks

Russ · PCS Employee Joined: May 12, 2004 Posts: 286

It depends on the sensor type. If it uses normal narrow band O2 sensors then the XFC intercepts the signal between the sensor and the ecu. The XFC then sends a new o2 sensor signal to the ECU until the air fuel ratio equals what the XFC wants. Once the desired AFR has been reached the XFC sends a normal swithing O2 voltage to keep the AFR steady.

For the wideband cars we actually skew the sensor reading the ECU gets instead of intercepting it. We calibrated the skew so that the user can just enter the desired AFR and the ECU then adjusts to it.

Russ

mehc · Newbie Joined: Feb 27, 2008 Posts: 2

And it works? Razz

Is it ready to get bought or is it still in development

Russ · PCS Employee Joined: May 12, 2004 Posts: 286

Its ready to be sold but only through Reactive Racing. They do a hardware modification to the XFC to make it manipulate the wideband. The regular XFC sold by us will not do it.

Russ

hruizfr · Newbie Joined: May 24, 2008 Posts: 1

Hi I'm interest too in this ECU for my Mazda 3 turbo project but need mor info like instalation diagram, maps and have suport like 800 line, live chat or only this forum.

Russ · PCS Employee Joined: May 12, 2004 Posts: 286

As stated above, the XFC will only work on the Mazda 3 after being modified by Reactive Racing. Support is available on this forum or by phone. Reactive Racing has base maps and installation instructions if you purchase it from them.

Russ