Just wondering if anyone has any ideas on what could be causing a bit of a stumble or surging around 1500 revs while gently accelerating. I know there could be heaps of things, but any ideas would be appreciated.
I have tried to attach a log and tune that shows where this happens. Hopefully that attached itself below! I am wondering if it's to do with the IAC valve opening and closing, as this seems to change up and down by 1 step or so between 1500-1550rpm. I have also attached my tuned that was loaded in while this short scan was done as I can't find anything else that would be enabling the IAC to be opening and closing while driving. I have noticed that it's still opening to 100 steps or so while travelling around 60KM/H, but I have got my throttle follower settings set to disabled as far as I can tell.
Anyway, please have a look at the attached files and throw out any ideas you may have. I still have a fair bit of logging and tuning to go for my VE table to be right, then play with timing again as I feel like I have taken too much out cause it doesn't have the same pull as before, but I just need to get the low rev range smoother so I don't have my wife complaining that it's rough now that I have changed the stato from auto to manual!
09.12.2018 7.hplWH2 Manual 06.12.2018.hpt