[Tor]

Originally Posted by Wayno

Ok, so that 1.02 log is what I used to create the current MAF scale you have now, so it should settle right on top of commanded AFR upwards of 3800.

I don't know what I am doing wrong.

I drove the car 75 km yesterday, 100 km to the track today. Did two 15 min sessions. Drove to get something to eat. Drove 100 km back home. Besides on the track all very light footed and in lots of different rpm ranges. Slow pulls, steady pace, varied pace etc. How exactly am I supposed to drive to get it to learn?

After all this almost 300 km driving and doing a log 5 minutes before arriving at home, I get this:

http://datazap.me/u/tor/tor-106-pull...7&zoom=223-331
+4 LTFT and AFR 11.27.

Is my ECU having a learning disability? Or am I a bad teacher?

Or could this be due to temperature swings? 30-35 deg at day (where most learning was done) and 20 deg in the evening (where I did the log)?

Or could other factors be at play, from free fantasy like injectors being poorly calibrated?

My car adds about -3 FLKC in areas with petrol on track compared to on the street, without any IAM drop. You would need to pull about 2 degrees out of base timing to make it "knock free" on track, which is de-tuning the car tremendously.

That's why I say don't bother. Note that only applies over 5k, if you get -3 FLKC below 5k it will drop the IAM like a rock!

In a previous post (about why I shouldn't do pulls from 2k rpm), you mentioned the Stg 1 tune was for catless headers in that area. That's why I decided to keep the 98 timing table below 3600 rpm (where I never drive anyway, except for cruising) and make a hybrid table.

If you run the regular 98 map it may still pull some timing at track temps with your fuel, but will not drop IAM.

The hybrid map seems to work pretty well? And I only run slightly less timing than the 102 table (-0.35 except for a few cells with -0.70) up in the high rpm range.

If the full 102 table would result in more FLKC, wouldn't that be subtracted from total timing anyway? Say I re-add the 0.35 deg but it results in -0.65 FLKC, wouldn't my total timing be less?

If I have to flash again because of the MAF, I will consider just flashing the 102 timing table straight up based on your explanation and the example logs you posted. Maybe I worry too much about the FLKC...

Thanks again for your help.