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2003 Isuzu

Tiny

snapman

August, 9, 2011 AT 12:48 AM

2003 isuzu box truck code po300 changed fuel pump mass air flow plugs coils are good

FOUND 1618 RELATED QUESTIONS

1 Answer

Tiny

KHLow2008

August, 9, 2011 AT 12:40 PM

P0300 is random misfiring and it could be due to clogged fuel lines/filter, engine compression or fuel pressure other than those you have checked/replaced.

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