failed emissions...
 

well, as I thought, I failed today... since my a/f was pretty good for crusing anyway, I just turned on closed loop o2 mode with the E8, and set it to 650mv target, and I think 750mv target for idle... and turned the throttle % cut thingies and everything way up so it wouldn't come out of closed loop mode... I think I'll turn the target down to about 500mv? think thats too lean?

also, what kind of ign. adv. should I be at for vac, and very low boost? I think max adv. right now is around 32 for vac, and then drops off to around 25 or lower by the time it gets to 0 boost.... not very aggressive.

and for split? it was 15degrees straight across the boards...

also, are normal factory recommended fine? are there any different trailings or leading plugs I should run for emissions?

if anyone has any more tips for tuning for emissions that would be great. I don't want to run it too lean and go kaboom. also, I'm planning on welding in a 2nd cat... and I've heard of putting some alcohol in the tank? anyone have more info on that?

thanks!

oh, and here are the numbers.

HC limits: 3.0, reading: 7.9
CO limits: 20, reading: 69.31
NOx limits: 6.00, reading: 0.0306

so I have a lot of room with NOx... but I'm way over with HC and CO.

just found the info on alcohol in the tank. sounds good.

just curious as to ideal target o2 voltage, and ign timing?