Bogging and stumbling

i was wondering if anyone can take a look and see if anything stick out to them. been having issues when tap the gas RPM drops and recovers. also can a tune cause exhaust to have a light blue smoke.

 

Mods: BNR 16G, TGV deletes, AVO Inlet pipe, RacerX FMIC, Catless DP, Perrin Pulley, Ported stock Headers, 850cc Injectors, one step colder plugs.

Stop and Go traffic.csv

Idle Short Revs.csv

I didn't look at your data, but as a shot in the dark - did you upgrade your fuel pump?

I had similar symptoms when my aftermarket Walbro sh*t the bed.

I have the DW65 fuel pump

Do a short data log sitting at idle, capturing AF Learning #1A, B, C, D. See if they check out ok (+/- 5% or so) or if they indicate a leak (pegged or large magnitude values, whose Min/Max are defined in the tune's AF Learning #1 Limits).

 

I would think a tune wouldn't directly cause blue smoke. Motor or turbo might be burning some oil. Does it always smoke or just under certain conditions (start up, boost, whatnot).

My shop discovered that my stumble was caused by a fuel line not being tight when they installed my DW-65 pump. Once fix, stumble off of low RM disappeared!