how do i fix po 303?

Asked by SrLawnman1 Dec 06, 2016 at 01:10 PM about the 2000 Toyota Camry LE

Question type: Maintenance & Repair

check engine light comes on intermittently and the code is Po303. car has been
running a little rough lately. How do I correct this?

2 Answers
35,335

lrodri911 answered 7 years ago

That means a misfire at cylinder #3 usually caused by a bad ignition coil, check fuel pressure and it's always a good idea to clean throttle body when this happens. Do that first and if it doesn't fix it, replace ignition coil on #3 cyl

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