Need help with o2 problem
#1
I installed pacesetter lts on my 2008 5.3l sierra and a nelson performance tune and my o2s are still showing up. I cant get nelson performance to call me back. They say that the o2s are not heating up correct. What can I do to fix this and will this hurt performance?
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2002_Z28_Six_Speed
GM Drivetrain & Suspension
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Oct 4, 2015 01:34 PM



