Air Temp Compensation Table

Hi

In the "Understanding AFR" course, "Air Temperature Compensation" module:

The video details setting IAT correction to 0 at 20 deg C

However the example tables have 0 IAT at 0 deg C

This has left me a little confused - could you please clarify/correct?

Regards

yes i think its a mistake, as i understand from this module is... that 15-20 deg is set to 0, so no changes on the injection is needed extra in the compensation table. then you go with 2,5% steps up or down in relation to temperature. sorry for my english...

With a 0 point placed at 20°C, is it a good idea to:

- add 3% fuel every 10°C below 20°C (which is advised in the course)

- remove 0% fuel above 20°C to help cooling the combustion and preventing knock (instead of removing 3% every 10°C above 20°C, as advised in the course)

Any opinion on that ?