For the most part it is working. I mean, now it's learning what it thinks is stoich, so there's a small change. It intercepts the signal between the sensor and ECU, so the ECU is getting, for example, a signal that the AFR is too lean (when it's not) and the ECU tries to add fuel. The ECU is now working for me, not against me. It is trying to hold the afr at what it perceives as stoich, but is being tricked. That's what I'm tackling at the end of the week; zeroing out the fuel trims to the new afr.
@numbah57: You don't NEED a dyno to tune it. If you have a wideband you can do it yourself, like what I will be doing this weekend. And the only reason it's this complicated is because the kit came from a different country >.<. I'm continuing with the project because I already spent the money and time installing it. See what URD
's got. I'm sure it will be much easier than this.