Hello. I compared the maps of 2.0hdi and 2.2hdi engines and noticed that the card IQ limit are very different, I can not understand why such a difference?
In the picture I compared the map of Peugeot 406 2.2, Citroen C5 2.2, my Citroen C5 2.0 and other Citroen C5 2.0.
And can someone tell me what the realties correct axis for 4x8 cards, IQ Limiter 1 - RPM vs Collant temp or RPM vs Fuel temp? Thank you.

I'm sure it's fuel temp. I maybe wrong though.

fuel temp.