Check for codes regarding the crankshaft and camshaft position sensors. When they start to go bad the ECU won't post a code until it happens twice in a row. In my case, it went slowly from an occasional refusal to crank (removing the key and re-cranking would work) to more often. For me it began cold weather, went away in the spring, and finally the sensor died in summer. Haven't had a starting problem since.
Dave
For the past few months I have had difficulties starting my 95 Maxima. The
> battery is good (1.5 years old, posts clean) but every once and awhile the
> car won't start. The lights are on, etc. but no start. Then, after a few
> hours, bingo - it starts. It has now happened three times this past
> weekend so now it is in the Nissan dealership. Wouldn't you know it - it
> started once it was towed there. Unfortunately, they can't do anything
> until teh problem repeats. Surely there is a test they can do to see if
> the starter is performing properly. When it is -30 I need a car to start. >