Datalog Timing pull ,most likely culprit?

[rev210]

New log with E40 mix on flex. No timing pulls. So up next will be E60 or E80 .
Still has a little of the Nulon fuel cleaner dilute in the tank, so will continue to clean as it runs down.

This might be the solution?

datazap.me | rev210 | E40 flex log. Mid fuel system clean

datazap.me

 

[N54TT]

Mine had been doing some weird ass shit too. Notice the gear change on this log the timing is dropping and coming back and the car would have some weird hesitations during those events. I think it was tune related no doubt. Since then I got tuned by V8Bait and couldn't have been happier... the car runs normal without any hiccups.

https://datazap.me/u/n54tt/n54-pure-evil-tuning-r3-timing-drop?log=0&data=3-21-25

 

[rev210]

Interesting one. I switched burbles back on. Missfires came back and timing pulls after a while. See log.
Disabled it , still ran rough . Put fuel cleaner in. Gone .
I noticed the rpm limit for burbles was set really low ,like 1500rpm. So i am guessing the mixtures are rich way to close to closed loop causing perhaps some plug fouling on an off light throttle. Regardless no more burbles. Will run this tank through and do some more higher E logs

 

[Osiris]

Yea I won't run any burble tune on my car. I don't like the fact that it dumps fuel to create burbles, to me that just spells out disasters in all sorts of ways, fouling plugs, cylinder wash, oil contamination with fuel etc.

I mean I could be wrong on all these points but logically if you're dumping fuel its the same as having an injector leak so I rather not do it. Personal preference.