Hi all,
I am starting to learn about ECU mapping and there is something that i see everyone talking about but couldn't figure out why it is so important.
Why does the tuner needs the Original map from the car and cannot use a stock map from the same engine model found on the web?
I heard about hardware numbers but i don't really understand what does that stands for.
I personally extracted the stock map on my golf4 PD150 and compared it to a stock PD150 map from the web and i couldn't see any values difference between both maps in VAG EDCSuite.
So my questions are what are those Hardware numbers? Where can i find them in my map? Why are they so important to tune a map knowing that the vales on stock maps for the same engine are always the same (might be wrong on that) ?
Any help would be much appreciated. I'm going to remap my daily very soon and i want to make sure that i did it the right way! Thanks for your time!

YoItsMobz wrote:Hi all,
I am starting to learn about ECU mapping and there is something that i see everyone talking about but couldn't figure out why it is so important.
Why does the tuner needs the Original map from the car and cannot use a stock map from the same engine model found on the web?
I heard about hardware numbers but i don't really understand what does that stands for.
I personally extracted the stock map on my golf4 PD150 and compared it to a stock PD150 map from the web and i couldn't see any values difference between both maps in VAG EDCSuite.
So my questions are what are those Hardware numbers? Where can i find them in my map? Why are they so important to tune a map knowing that the vales on stock maps for the same engine are always the same (might be wrong on that) ?
Any help would be much appreciated. I'm going to remap my daily very soon and i want to make sure that i did it the right way! Thanks for your time!

HW numbers effects the map locations, not always in the same location on each HW/SW version



wbr

Because it can be different board design, pinout, actuators and software version.
Yes you can find info in your flash and eeprom with simple hex editor.

Ok it makes more sense now, thx for the quick replies!