engine code P0302, Toyota -2005 Avalon, 109K miles, cause and repair estimate

Question

2005 avalon start to rock while running. engine light on. take to mechanics and found engine code P0302. Mechanic suggests replace valve gasket on 2nd piston, replace 6 spark plugs and oil package. Is this correct and what is the estimated cost in Rockville, MD area

Answer 1

Hi there,

This code is for a misfire on cylinder 2. This will most likely need a new spark plug or ignition coil. Here is a list of other possible causes.

P0302 TOYOTA - Cylinder 2 Misfire Detected

Read more: https://www.autocodes.com/p0302_toyota.html