Universal ROM for Evo X
Aug 17, 2012, 08:33 PM
#17
I remember reading an old thread where tephra was trying to do the same thing. Benching an '10 ecu with rom from a different year.
Last I remember from reading iirc, it wasn't working.
Might wanna touch base with him to see how he went and do it, coz having a universal rom for different years would make a tuners' life so much easier. As for me, I'm just learning how to tune and my test mule is my car. So universal rom isn't anywhere where I can lend a hand.
Hope it works out for u!
Last I remember from reading iirc, it wasn't working.
Might wanna touch base with him to see how he went and do it, coz having a universal rom for different years would make a tuners' life so much easier. As for me, I'm just learning how to tune and my test mule is my car. So universal rom isn't anywhere where I can lend a hand.
Hope it works out for u!
Aug 17, 2012, 09:55 PM
#19
Evolved Member
Remember... Mitsu change code, tables, etc. etc. from year to year (and region to region).
I guess you need to differentiate between potential compatibility problems and the way cars with that ROM drive.
Rich
I guess you need to differentiate between potential compatibility problems and the way cars with that ROM drive.
Rich
Aug 20, 2012, 10:57 AM
#23
Rev hang can be the way the timing map is setup.
UPDATE-
I successfully bench flashed a 2012 GSR to a 2011 and it started. From there I flashed it to a 2010. Unfortunately it is pretty far from stock so being able to see if this is where the missing power has been wont be something I can accomplish with this one. I'll be checking the tune on the road and then throwing it back on the dyno to make sure the inconsistency that I had observed before is now gone.
Aaron
UPDATE-
I successfully bench flashed a 2012 GSR to a 2011 and it started. From there I flashed it to a 2010. Unfortunately it is pretty far from stock so being able to see if this is where the missing power has been wont be something I can accomplish with this one. I'll be checking the tune on the road and then throwing it back on the dyno to make sure the inconsistency that I had observed before is now gone.
Aaron
Last edited by JohnBradley; Aug 20, 2012 at 11:08 AM.
Aug 21, 2012, 06:05 PM
#25
More details for those that are interested.
Car is a ETS 6262/FIC 900/ER DP...
Car is a ETS 6262/FIC 900/ER DP...
Car started up, idled fine, so I took it out on the street real quick. Once it was warmed up I made a quick 2-3-4 to doublecheck the AFRs as the build was identical to the 2011 I had done a few months ago. The stock 2012 ROM would be anywhere from an 11.0 in 2nd to 12.0 in 3 rd and then back to 10.0 in 4th. I had leaned it out to make it drive right but even then it would run a 12.0 in 2nd, 12.8 in 3rd, and 11.4 in 4th...NOT ACCEPTABLE at high boost. On the 2011 ROM it was perfect. 11.3 every gear, no weird tip in, no DBW getting in the way, everything was perfect.
Aug 22, 2012, 12:56 PM
#26
Ran a more or less stock 2012 GSR today and then converted it to a 2010 ROM. The car baselined at 287, flashed to 323/295, and switching ROMs it picked up 1whp peak but held 10 ft lbs more down low and 7-10whp up top.
There was some slight boost fluctuation which could be a little of it but not sure its all of it. Still eliminating one thing at a time
Aaron
There was some slight boost fluctuation which could be a little of it but not sure its all of it. Still eliminating one thing at a time
Aaron
Aug 22, 2012, 03:16 PM
#28
It appears all the USDM is interchangeable at this point. You may have to work at it to get it to behave but I am sure the 2008 will run on any of these ECUs just as well as the 2010-11 stuff I have been using for 2012, or the backdated 2011.
Aug 22, 2012, 03:51 PM
#29
yeah there are a few things to consider:
1) hardware changes (ie extra or fewer sensors, or different pinouts) - mostly unlikely in the same region of vehicle
2) compatability with other systems, ie different communications with ACD/AYC/ABS/Combo/ETACS, etc etc... really you should be able to see any problems by just driving around...
1) hardware changes (ie extra or fewer sensors, or different pinouts) - mostly unlikely in the same region of vehicle
2) compatability with other systems, ie different communications with ACD/AYC/ABS/Combo/ETACS, etc etc... really you should be able to see any problems by just driving around...
Aug 22, 2012, 03:56 PM
#30
The only thing I can think of that is different between the 08 and 10+ is the dash but I can check that with a flash as well. They use all the same sensors that I can tell so I think we'll be okay on the control front, output to dash may be different. ACD/AYC is a subsystem and should be unaffected. The SST works better now that I can control it vs not having anything for the 2012.