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Discussion Starter #1
Can I get out of The Speed limiter for Emissions Issues by powering down the truck Battery connections? My 2012 is down to 55mph and I still need to run on the interstate to get to a good mechanic. I'm also looking for a independent Mechanic in the Ft Wayne, IN area for service. My Sierra has 290K miles. Might be modifying the system.
 

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No. The system monitors every time you start up. Go by an auto parts store and have them print out the problem codes. Start from there.
 

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Discussion Starter #3
No codes set in OBD2. I just thought like OBD1 you could power down the computer and erase the memory set in the computer.
 
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