Question about 2006 Toyota Sienna
My 2005 toyota Seinna check engine light came on. When tested error codes P0300, P0301, P0302, and P0303 came up. The vehicle runs great with now noticable misfire. Fuel milage has not been effected. I have a similiar problem yesterday with my 04 toy sienna. Hubby is traveling a long way today to look for work. Took to local mechanic and said it could just be bad gasoline. Gave me a bottle of chevron gas treatment and told me to put a full tank of good gas along with the treatment....light no longer on and I am absolutely crossing my fingers that my husband does not break down in the middle of no where. Don't have the money to repair anything.....when it rains it pours. Could it be the gasoline he got at a cheap (pilot) truck stop last time be bad?
P-0300 indicates a "multiple cylinder misfire".
P-0301, 0302, and 0303 indicates misfires on cylinders 1, 2, and 3.
The culprit could be bad gasoline, water in the gas, or dirty injectors. If you had P-0301-02-03-04-05-06, I would recommend plugs. But, in your case, I do believe that your issue IS fuel related.
I would not suspect ignition coils, as you do not have a P-0304 with the other 3 codes recorded. I hope this helps. Please feel free to get back to me if the problem reappears, for additional info.
Posted on May 27, 2009
Its nothing to worry. I had same with 2004 Sienna. Fortunatley I took to dealer who is actually a friend
and didnt try to rip me off. When gas cap is not put on tightly a couple of times, it sets off a
sensor. That is all. Mechanic reset "idiot" light and away I went. Will run fine without but may deactivate AWD skid control. Handles better without anyway.
Posted on Jun 01, 2009
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Posted on Jan 02, 2017
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