What do you mean by struggle starting? Is it just long cranking? There was a thread I read a while back that tends to be for the first start if the day, and seems to happen more often when it is colder that showed the factory VVT system for this car can cause some longer crank times. Mine even does it from time to time. Doesn’t cause any damage with the longer cranks, more of an annoyance, and repacking this vvt portion has been known to fix it. Linked below is what I am talking about.
https://youtu.be/DXvHdmq0reA
He says it only occurs at first start up, but can also occur at second start up given other circumstances in my experience.
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