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69gmcc10 · 11-06-2013, 12:45 PM

I asked the question because I had similar problem when I installed E3 plugs, random misfires everywhere so I went back to ACs.

before my cats went out I had O2 sensor codes and misfire codes.

Good luck

11-06-2013, 12:45 PM	#5
69gmcc10 Registered User Join Date: May 2011 Location: Missoula, MT Posts: 934	Re: 01 6.0 random misfire I asked the question because I had similar problem when I installed E3 plugs, random misfires everywhere so I went back to ACs. before my cats went out I had O2 sensor codes and misfire codes. Good luck __________________ 69 GMC C10 build thread- http://67-72chevytrucks.com/vboard/s...d.php?t=501676 03 Silverado build thread-http://67-72chevytrucks.com/vboard/s...d.php?t=591582