starionesir Posted January 9, 2013 Share Posted January 9, 2013 I was going to try and reset my 5EAT computer to see if that helped with my shifting issue but was not able to find any reset procedures. Do you need any special tools to do it? Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted January 9, 2013 Moderators Share Posted January 9, 2013 You can do it with a vagcom cable (or tactrix) and FreeSSM software (google it). If you don't have a windows laptop / vagcom cable you will need the dealer to do it for you. "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
Max Capacity Posted January 9, 2013 Share Posted January 9, 2013 I'm guessing you remove the negitive battery cable for about 15-20 minutes. That should do it. You should clean the cables and then grease them after you put them back on to keep moisture out. Grease all around them, top, bottom, sides. How old is the battery ? They last about 6 years give or take a year. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Max Capacity Posted January 9, 2013 Share Posted January 9, 2013 You can do it with a vagcom cable (or tactrix) and FreeSSM software (google it). If you don't have a windows laptop / vagcom cable you will need the dealer to do it for you. Uh, didn't know that, so pulling the battery cable won't do it for the TCU ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted January 9, 2013 Moderators Share Posted January 9, 2013 Uh, didn't know that, so pulling the battery cable won't do it for the TCU ? Correct. "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
starionesir Posted January 9, 2013 Author Share Posted January 9, 2013 I was hopeing I could maybe do it with my matco scantool. I know when I worked for mitsubishi there was somethings only the dealer scantools could access. I don't have a vagcom cable but will have to look into it and see what I can find. I appreciate the info. Link to comment Share on other sites More sharing options...
Max Capacity Posted January 9, 2013 Share Posted January 9, 2013 For future reference, ClimbeD@HexMods is the expert on these. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
starionesir Posted January 9, 2013 Author Share Posted January 9, 2013 Ya I have talked to him about getting one of his valvebodys. Wasn't sure he would know about reseting the computer though. Link to comment Share on other sites More sharing options...
lordchilly Posted January 24, 2013 Share Posted January 24, 2013 I got the VB installed then drove it to the dealership and have them reset my TCU. The tech pushed a cart out to my car, plugged it in and did a reset. They he said...have a good day. no fee. Guess I found him on a good day. Link to comment Share on other sites More sharing options...
Shotokan1509 Posted January 30, 2013 Share Posted January 30, 2013 Correct. Excuse my lack of knowledge on the subject, but then why does my trans shift like garbage for first 100 miles or so after the battery is disconnected? I always figured it was relearning it's shift points based on driving I just had it off Thursday, shift like poo on start of drive CT to Boston, but by time I got there it was back to normal, drove up to Maine and all the way back fine. Tonight, disconnect battery again, again shifting is all out of whack. Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted January 30, 2013 Moderators Share Posted January 30, 2013 Shifting does seem to be out of whack after a battery reset, but I don't believe it's a full TCU reset. ClimberD probably knows better than any of us.... "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted January 31, 2013 Share Posted January 31, 2013 Shifting does seem to be out of whack after a battery reset, but I don't believe it's a full TCU reset. ClimberD probably knows better than any of us.... It's not a full reset. I don't know why it acts weird after an ECU reset. Only way to do a full TCU reset is to interface with the TCU. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
Shotokan1509 Posted February 14, 2013 Share Posted February 14, 2013 Excuse my lack of knowledge on the subject, but then why does my trans shift like garbage for first 100 miles or so after the battery is disconnected? I always figured it was relearning it's shift points based on driving I just had it off Thursday, shift like poo on start of drive CT to Boston, but by time I got there it was back to normal, drove up to Maine and all the way back fine. Tonight, disconnect battery again, again shifting is all out of whack. It took few hundred miles, very annoying and I could smell it burning but now its back to normal.. weird. Link to comment Share on other sites More sharing options...
fishbone Posted February 19, 2013 Share Posted February 19, 2013 It's not a full reset. I don't know why it acts weird after an ECU reset. Only way to do a full TCU reset is to interface with the TCU. This is absolutely correct and is supported by the literature on repair procedures. It indicates one should disconnect the battery, do the work, reconnect the battery and then reset the TCU memory that remembers shifting behavior. If the battery disconnect took care of that, the reset would not be necessary. The memory modules that remember the learned shifting behavior is akin to flash memory. They do not lose their data upon losing power. The same applies to the memory that has the base tune. Unfortunately we don't have access to reprogram it. Link to comment Share on other sites More sharing options...
CapSlo Posted February 20, 2013 Share Posted February 20, 2013 You can do it with a vagcom cable (or tactrix) and FreeSSM software (google it). If you don't have a windows laptop / vagcom cable you will need the dealer to do it for you. Is there any option if I have a Tactrix 2.0 cable? The vagcom cable is cheap enough, but if I don't have to buy one, then all the better. Edit: Never mind. Found ClimberD's SSM thread. Link to comment Share on other sites More sharing options...
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