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Dear all, my 2010 Sienna, 330K mileages, begins to misfire only when hot, when I drive it for 10 miles. And when it happens, I pull out, shut off engine and restart engine, the misfire can be gone and work for a long time, or a short time. The error code are always P0300, P0302, P0304 and P0306. I replaced all spark plugs, all plug coils, the injectors for cylinder #2,4,6. But the misfire always comes back when I drive it for a while. But of course, it can be get rid of by restarting engine.
I don't know what parts are the next to be replaced. I appreciate any suggestions from you.
Thanks,
Peter
I don't know what parts are the next to be replaced. I appreciate any suggestions from you.
Thanks,
Peter