Need Help WH statesman gen III

[benkelly]

hi need some help , i have a 2001 wh statesman with a gen III , and for some reason the whole left Bank is running lean and the whole right bank is running rich , took all the spark plugs out right was black and left was white any help would be great , thanks

[accentstencil]

Might be time to change oxygen sensors.

[benkelly]

forgot to mention , i have changed the 02 sensors , cheers

[Vt_vic]

might be time for a mechanic?