78xcgxl 241 Posted December 24, 2013 Hi all,I was just after some info if you can you use a AU series 2 &3 ecu into a series 1 AU? Now i know that series 1 AUs did not come with smart shield or whatever you call it haha and just smart lock like E series falcons therefore it wouldn't probably work straight off the bat. But could you however use say for example a series 3 ECU with a J3 chip to get rid of smart shield & smart lock and whack it into the Series 1 AU? Will this work??.Also another question did Series 1 AUs come with OBD-2 ports or was that only on the series 2 and 3 and apart from series 1 AUs not having smart shield and therefore a different programed ecu, is there anything different on wiring side of things compared series 1 AUs with 2&3 AUs?Any help or ideas on the matter would be greatly appreciated. Share this post Link to post Share on other sites
gromet88 3,042 Posted December 25, 2013 I'd prob just put a series 1 back in it, save all the trouble. i would say it would end up not working like the ef's have the different colour boxes, i would think au would be the same 1 mcfly94 reacted to this Share this post Link to post Share on other sites
78xcgxl 241 Posted December 27, 2013 Thanks gromet88, the reason i am asking is that if i need a replacement ecu i can use any AU one. Keeping in mind this going to be for my 4.0l conversion for my xc and the ECU will be only used for engine management (using a T5). Anyways i asked the same question on another forum and i found out that if i wanted to run series 2&3 ECU into a wiring harness from a S1 it is just a matter of programing the j3 to also get rid of smart shield as well as the smart and swapping to a series 2&3 MAP sensor as Series 1 have a slightly different MAP sensor on the BBM manifold. Share this post Link to post Share on other sites