I got the code P0303 and P0300,P0301,P0302 old code.Engine misfire at idle. on 2001 Toyota Camry

Valve cover gasket is leaking. cylinder 3 has oil.spark plug was changed in 08/2013.Sparkplug wire set looks ok.

by in Glendale Heights, IL on December 23, 2013
1 answer 2 comments
ANSWER by , December 23, 2013
If you want to FIX this, replace the complete vave cover gasket 'SET'. Oil that has leaked in around the spark plugs will cause these misfires/codes. Replace plugs and wires! Toyota's really work well with "NGK" plugs and plug wire sets! And vice versa!!
COMMENT by , January 29, 2014
Hi. Thank you very much. Your suggestion solved my problem.No more Engine code. No more Misfiring.I have changed valve cover gasket by myself.Gasket cost me $15.I also replaced Danso spark plug wires set. Spark plugs were already changed. Thank you And appreciated for your big help. God bless you.
COMMENT by , January 29, 2014
Glad to help!