Mawrick 0 Posted June 9, 2013 Anyone know if some of the VR6 ECU's are compatible with eachother ?. ex mine is this one: Would I be able to use ex: 021 906 258 CG Any list of compatible models anywhere? - and also what is the difference between them ?. Quote Share this post Link to post Share on other sites
science 0 Posted June 12, 2013 Have a look in here; Volkswagen Engine Management ECU`s http://www.corrado-club.ca/tech/vwecucodes.htm Yours in Bosch Motronic 2.91, at the very least you will need a Motronic 2.91 ecu, I'm unsure of any wiring differences. Quote Share this post Link to post Share on other sites