2009 sienna setting p0300-p0301-p0302-p0304 after exceeding 70 mph vehicle has less than 60k mi dealer replaced #1,2,4, coils $$$$$ 2 days later cel set p300-p301-p302-p304-p305 codes cleared within a week it set p0300-p0301-p0303-p0304
SOURCE: rough idle repaced faullty vsv and charcol
Haver you had the throttlebody cleaned? very common problem and easy fix.
SOURCE: I am getting codes P0300,
What is P1300,1305 1310 on a Toyota
They are MFG Specific
Get them and I will try and offer some suggestions
302 is #2 but Iam thinking if you find that
those other codes are Cam Sensors, then
we will discuss that
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I guess my original post was insufficient. When the light sets, and is blinking, the engine runs very poorly. As soon as I pull over and shut it off, upon restart it runs perfectly. I have driven it over 300 miles after light set without it setting again. Every time the light has set, we were driving on Interstate with a 70 mph speed limit. The light would usually set again if we crept up to 72 or 73 mph. The codes keep jumping around, but never has set any codes other than the specific cylinder misfire codes. Never any EGR MAF O2 sensor codes.
Check BAtter Drop Voltage WhenAll Electronic Systems Are On ...Then Watch The ECM Power Drain.Change Your Battery If Cold Cranking Amps Are Low This Has fixed My Customers Issue Of Same Symtoms When Toyta Dealer Couldnt
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