Answers: Intermittent problems are the hardest to diagnose and thus to repair. The only approach to make sure you find the root rationale of these things is to diagnose the car when the culpability is active. That vehicle being arranged when the fault happen. You have to do the ground rules first, check spark outputs and for any signs of corrosion or carbon tracking in the ignition system. Anything worn out as far as compression test and spark plugs. You will also have to check the fuel pressure. This is not glib as you have to split the queue and install a gauge to read the pressure on start and run. These call for around 55 psi to be sure they are good, I believe. I would return with a spec on that before maxim for sure that is what you stipulation. Also a data chronicle to see if something is reading funny but not setting a code. Or a loss of voltage to some component. Like I said, these have to be treated next to patience as the parts are incredibly expensive.
any time the battery is disconnected or insensible the computer in your motor needs to relearn the fallow air control. in attendance are a few things that can cause your problem beside out setting a code like a bleak battery nouns a small vacuum leak a dirty throttle body,doomed to failure fuel or low pressure and plugged air filter freshly to mention a few. it sounds like you enjoy done all the graceful stuff so I suggest that it is time to have a mechanic look at it probably the vendor because depending on the mileage the problem may be covered under the seepage warranty.good luck
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