VersaTune User Forum

Hi everyone,

Here is my first log with the standard kit under high load.
I’m still a bit baffled to be honest, so any feedback or advice is more than welcome

I have to admit I’m not at my sharpest these days — we’ve just welcomed our first baby at home, so between the car and the night shifts, my brain is sometimes running richer than the engine itself.
Trying to analyse AFRs at 3 AM while rocking a newborn is… let’s say, an interesting combo

Since we’re redoing the baby’s room at the same time, we’ve also been looking for decoration ideas and found some really nice designs here: Kids-Wall.
Super handy when you want something cute without spending hours searching.

Anyway, here’s the log attached below.
If anyone more experienced can point out what looks normal and what doesn’t, I’d really appreciate it.

Sleep-deprived but still tuning,
Cheers!

You need to work more on your MAF cal. You're running a bit lean across the entire board. Re-do your maf cal, rethink the load targets after you do that, and if you will be able to keep the same advance timing values up to red line then you should be good. It's weird that your turbo is already maxed out at 217kPa MAP, what elevation are you at?

if im honest dont really no about elevation! still reading up
was told that i didnt need to do maf cal using standard air box

I think you can use google maps to see the altitude of your location.
As for the MAF cal, that may differ for various reasons:
1. the MAF cal which comes as default stock MAF cal with the versatuner maps is for the US models. If you're somehwere else or you're using another type of gas for your car (say, you don't have 93Octane/98RON available) that may be a bit different;
2. various minor/undetectable leaks may also have an impact;
3. your MAF is constantly fouled by extra moisture, or dirt, whatever.

I wouldn't have mentioned your MAF cal if I didn't see some pretty significant differences there.

The stock MAF cal is retained for each platform and region. I'd have to check, but I think they are the same anyway.

Log the barometer to get an idea of your altitude, or at least the affects of your altitude on air density. Sea level is 98 - 101ish kPa depending on weather.

Like mituc said, check for leaks or a dirty MAF sensor.

ok cheacked for leaks and all seem good and also got so electrcal contact cleaner and gave maf a really good blast , so do i now re flash and let car re learn its trims again !

oh and thanks for your help guys much aprciated