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What cause both bank to run lean with Po305?

Updated: 10/21/2022

Wiki User

∙ 15y ago

Best Answer

id try the coil. i had p 171, p174 ,p301 which is cylinder 1 and 4 are lean and the 300 codes are misfire codes i changed plugs wires and coil worked fine

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∙ 15y ago

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