shmark

Trying to pass emissions in GA and here's where I failed (on CO%). The run has to be taken in 1st gear maintaining 2500rpm for 90 seconds. This is an excel chart based on my current settings in the mafterburner, running 1st gear under load (uphill) for about 1 minute.

The Uego and the mafterburner agree with each other on the a/f ratio and I'm looking pretty consistently lean for the test. I think I need to lean it further to pass the test but it's already pretty lean. Next adjustment will be -5% for the MAF output voltage range from 1.1-1.9 (was at 0 for the range), which covers the rpm range for both tests.

Good, bad, ugly?

shmark

Slightly confused. I adjusted the MAF Output voltate to 10% lean (-10) over the range 1.1-1.9V and ran the same 2500rpm 1st gear test. It looks like the car is now running slightly richer over that range. I've got the wideband set to the Bosch sensor, and am using a Uego wb. The Uego display and the mafterburner seem to agree on the a/f measures everywhere, so I think I'm configured correctly. Hmmm....

shmark

BTW here's the current map setting. Any suggestions? I don't want to adjust too far in the wrong direction while I'm learning how to use this thing.

Ski

Take the laptop with you. There was someone who recently passed in CA with a 2.8L and Mafterburner....CR who it was though.

pikey7

Or stick a switch in that wire, work out the voltage you sit on for 2500RPM, Lean it out 10%, and send the map to tune two. Pass the test, and flick to tune1. Job done.