...have a V6 you have 2 banks(sides). the problem is in the air/fuel mixture and the O2 sensor is picking up the lean mixture. get this diagnosed by a mechanic familiar with emissions and fuel
...lean fuel mixture, or bad spark plugs combined with excessive combustion chanber temperatures. You need to have the engine scanned to see if the computer has stored any trouble codes to indicate what ...
...to lean. could compression be a problem I doubt it. Usually if you have a trouble code for lean mixture, the fuel pump pressure is low or the filter is stopped up. I would check fuel pressure
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