I've been straightening out all kinds of problems, from oil leaks, vacuum leaks and exhaust leaks. Finally dialed in with new O2 sensors and working on the tune again. If I just run open loop at idle it looks good, wideband AFR pretty steady stioch. But close loop idle it drifts lean with a slight surge. I've been working over the prop tables back and forth and can't seem to get it any better. If anyone can take a look at this datalog and bin to see if anything jumps out at you that I'm completely missing I'd greatly appreciate it. I had to zip the dat file so I could upload it. Thank you!

 

Something isn't working right with the datalog. It doesn't show anything in WUD during playback or analysis. I don't have a p4 XDF so can't look at the bin either (not sure how much overlap there is with Flash xdf). Would also be helpful to know cam specs.

 

Here's the XDF-I had to zip it also to be able to upload it. I'm not sure why the dat file won't run. Cam is 218/224 at .050 on 113 LSA. Not too much cam as I have to pass smog and if you pull in and it's got a lope to it they auto fail you. If I didn't have to deal with smog I would just run it open loop idle and be done with it.

 

Which prop gain values are you adjusting? What values have you tried?

 

Without the datalog working I can't say for sure but it looks like your prp changes are way extreme from where I have my Flash port mod setup with a larger XFI 280 roller cam. My Gain multiplier for idle (airflow) is at 25.1 and my duration for idle (o2 error) is a t 800 mSec. Then my Gain vs o2 error starts at 7 until 174 mV then progressively goes up to 18 from there. I need to reduce mine some the next time I do some tuning but it isn't bad at all. I mainly feel it at steady highway cruise where it almost has a pulse feel to it in torque output. Idle is pretty good though.

 

prp-gain multiplier for idle (airflow)
prp-duration for idle (O2 error)
prp-gain vs O2 error
I've progressively lowered these with improvements and now have them maxed out low.

 

I started at higher values and got improvements as I lowered them.