I'm still learning how to do everything and have been reading and searching quite a bit. I have an LC-1 that I will be hooking up soon and was wondering if it's possible to log lambda instead of AFR in the scantool. Looking at the various PID's I only see the ability to log O2 sensor voltage except under the "Wide Band AFR 1 & 2 - LC-1" where you can log AFR. I plan on tuning for both 93 octane and E85 on my '98 Z28 STS setup. From everything I've read, lambda seems like it'd be easier to tune with than AFR when using different fuels. I'm lazy and don't feel like doing math which is why I'm interested in tuning with lambda.