[artieman]

Originally Posted by explosivpotato

Hey leonine, I kinda did both at once. I did the math for a desired AFR and then skewed the O2 map to fit.

The harness was 210 USD plus shipping, and the F/IC was 350 USD plus shipping.

As for O2 skew, I mean that I can make the stock ECU adjust for any AFR I want it to at any load point I want it to. Closed loop be damned! The Emanage can't do this.

The AEM can indeed log UEGO readings. Boomslang leaves you a flying lead to hook to your UEGO for logging purposes.

Quang - no resistor in the wire. Just a straightup tap.

And artieman, the emanage can adjust the revlimiter, but it can't do O2 skew. The Emanage has a lot more features than the AEM, but I wasn't using them and the AEM had the one feature I DID want - O2 skew. Maybe you could run both in parallel? That seems a bit much though.

Anyone running the AEM looking into the specifics of the O2 skew map PM me and I'll show you where I'm at. I'm still fine-tuning it. I had it set at 15.5:1 for my 800 mile cruise home from GA, which netted me 40.28 MPG (through the mountains. At 80 mph). Too bad the secondary O2 sensor showed the computer the lean condition and started throwing emissions codes. If this thing had a secondary O2 skew we'd be in business, but as it is I think I'll be adjusting back to the stock 15.0. Boo.

Another note is that when using the O2 skew map the AFR is WAY more steady. It will barely sway over .2 AFR or so, when I'd easily see a very fast oscillation of sometimes over a full point in stock form.

need one of these for the o2 after the cat
Oxygen O2 Sensor Simulator OBD II SIM w/ Instruction - eBay (item 110371118253 end time Apr-29-09 17:28:31 PDT)