rough engine idle on 2000 Toyota Tundra

codes 300, 303, 306 . where do i start ?

by in Oklahoma City, OK on November 27, 2009
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1 answer
ANSWER by , November 27, 2009
I bet you do have a rough running engine. You could have bad coils or plugs or both. You clearly have a problem with number 3 and 6 cylinder. To save a lot of agravation just replace all the coils and plus. They are double plat plugs.