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Old 11-02-2012, 09:09 AM   #69
Joined: Jul 2007
Location: Los Angeles, CA
Oddometer: 2,481
Originally Posted by fast4d View Post
2011 rc8r same problem

31 immobilzer error code and 81 error code
mine turned out to be a map problem.

tune ECU cable malfunctioned while writing a map. it stopped connecting altogether. after dealer reset CAN BUS error and loaded a new map the problem went away. it was all software.
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