I was wondering where the o2 voltage should be in pe mode. I'm using the ebl flash, but I do not have a wb o2. Its hard to get a ve learn in under acceleration, but my o2 is steady around 750 during pe. Is this too rich?
Also, what does launch and async do?

 

You might want to wait for others to chime in. But I always was told it should be around 900.

 

Launch mode adds spark advance to get the engine up against the converter and move out. Or in the case of a stick shift, just to get the car to move out. Notice how it is only active for a short period of time and under a certain MPH.

Async is when the injectors fire together every 12.5 milli-seconds. That is, asynchronously to the spark plug firings.

I too would shoot for a higher O2 in PE mode.

RBob.

 

Same here, 900mv is what it's supposed to be according to some guys on here. On a side note, atleast being richer is better than lean in WOT.

Also, here was a discussion on this: https://www.thirdgen.org/forums/dfi-...sensor-mv.html

Bottom line is that a NB O2 doesn't read accurately before and after 300mv and 700mv respectively.

 

Thanks all of you, looks like I'll be turning it up a bit for now. A wb will be in the future, after some engine work is done.