I have a 05 g35 sedan with muliple symptoms while starting.
1. Occassionally the car will crank and crank but will not start. After the second or third time it starts up and runs fine.

2. On different occassions the car will crank like the battery is almost dead, clicking like a solenoid, dash lights flashing and all. After a few seconds the clicking gives way to a slow crank until finally the car cranks up like it should. This seems to happen more often when the outside tempurature is mid 90's and up. Live in Central Florida so that is quite often.

I have had the load tested and it is okay.
I had the car checked for codes but no codes. Check engine light is not on.
These symptoms will also occur when the car is cold and the weather is relatively cool at 70ish.

Thanks for any troubleshooting help. I hate to throw parts at it, ignition parts, cam sensors, etc without really knowing.

jim