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Old 09-02-2019, 10:21 AM   #5
christianchevell
old school chevy rodder
 
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Drives: 2021 zl1 a-10 WildCherry
Join Date: Jul 2012
Location: Oregon
Posts: 5,622
What ever tune your installing uninstalling your giving little info...…… The tune you install should disable the rear o2s and also clear the code for delayed response reading the fronts, also you have to make sure the o2 wires are very clear of the pipes or they will melt and the plugs did not get cracked or the wires get loose on them......
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