Have a look

[12sec.5.3]

I was able to go drive a while a make a good log.

[12sec.5.3]

This is the VE after copying and pasting from the log. I didn't smooth or blend it at all.

[12sec.5.3]

Smoothed out the VE table and applied to my tune and plugged the maf back in. Check this log and see wt u think.

[joecar]

Something seems wrong with your wideband, see all the spikes when the motor appears to be in almost steady state (3rd pic).

1st and 2nd pics show wideband AFR instant drop causing the big spike in the VE peak region.

[12sec.5.3]

Yea I do have a lot of spikes. My wb always did fluctuate like crazy but I thought that was bc the tuning was off a bit. I stays a little more steady now but still has upward and downward spikes. Would could go wrong with that though?

[ScarabEpic22]

Definitely need to smooth those HUGE spikes out to get a sane value, what filters are you using on transient throttle conditions? And what is your cell count for those cells? Shoot for 50+ before you apply any correction in that area.

[joecar]

Those spikes in the wideband AFR are periodic... is the wideband timing out and reseting itself, or does it have an intermittent power connection...

Erik said you could probably filter those spikes out by adding some clauses to the ben transient filter.

[12sec.5.3]

I'd like more info on building this filter

[joecar]

I played with the filter but I couldn't get it to filter out the spikes (it can filter an up or down transition, but can't seem to filter spikes)...

So, try this, in calc_pid.txt call damp() before assigning the value to the afr...

post your calc_pids.txt here so I can edit it.

It would be better if you could find out where those spikes are coming from...

[12sec.5.3]

Here u go...