Page 1 of 1

Checksum question

Posted: Mon Mar 13, 2017 8:05 am
by Mykk
If my Motronic M3.3 cranks, fires up and runs without a checksum adjustment do I need to worry about it? Or is it still a good idea to have the checksum match every change made in the tune?

Re: Checksum question

Posted: Sat Jun 24, 2017 11:23 am
by Radish Wei
Mykk wrote:If my Motronic M3.3 cranks, fires up and runs without a checksum adjustment do I need to worry about it? Or is it still a good idea to have the checksum match every change made in the tune?


Yes you need to checksum everytime tuning,if not maybe can't start engine

Posted: Wed Jun 28, 2017 3:17 am
by Hairyscreech
What car is this M3.3 from?

ECU and chip number?