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Old 11-14-2016, 10:46 AM   #9
Leozl1
 
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Drives: 2013 zl1 stock.
Join Date: Sep 2016
Location: Houston
Posts: 1
I'm having the same problem p219a and p219b came on my zl1 after I installed upper pulley, tb, injectors, CAI AND a tune. Idk what's causing it to do that my tuner couldn't figure it out.
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