wide open throttle
advanced.
If deleting your O2s was done dumb, you could still have
active closed loop but badly mis-trimmed, and when you
add that to factory pig rich and then lay down some
COT enrichment, that would be a fat soggy mess. Have
a chase vehicle let you know what's coming out the back
when things go south.
Overgapped plugs can work fine at part throttle and
blow out at WOT.
Fuel filter is likely due for changing, and would give
you a WOT lean condition with maybe some knock
retard.
Scanning is wanted.
I think this belongs elsewhere. I'm picking General
Maintenance.



