RN> 1. The engine only starts on the 2nd attempt
RN> 2. When going somewhere, and shutting the engine off, the car has to sit
RN> for
RN> about 30 minutes before the engine can be restarted.
RN> 
RN> This is a new one on me.  We originally thought it might have something
RN> to
RN> do with the chip in the ignition key, but that didn't solve the problem.

Has the starter (in particular, the starter solenoid) been replaced? 

When you mentioned having to wait 30 minutes to restart it, that would be a
cool down time.  

The other thing that comes to mind would be fuel pressure regulator.

Does it sound like it is starving for fuel when it doesn't start?  

- Mark

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