I have a 96 GMC K1500 with a 5 litter. Have check engine light on with a error code of PO420. What is the problem and
I have a 96 GMC K1500 with a 5 litter. Have check engine light on …
Dec 9, 2016
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42K views · 209 reactions | How To Fix Code P0420 Catalyst converter #p0420 #catalyticconverter #patrol #fuel #consumption | Abdullah auto electrician | Facebook
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