I have tried reading every thread on this and most answer things I have had done already after having it in 2 Nissan dealers (5 times) and 3 private shops,

List of things replaced due to this...Key, starter, crank and cam position sensors, battery/cables checked, new sparkplugs/belts/gaskets as well while they were there as it was time

The car starts fine for weeks, then creates no-start for days. Reoccurring more frequently now. The oil pressure seems fluctuate prior to this, and car gets sluggish as well. Everywhere we have had it has either not been able to recreate, or they throw a part at it when that code comes on.

Occurs after long drives, or short ones, but if you let the car set for about an hour, will most times restart. Just not sure anymore what part to throw at it!

 

Have you run across any fuel system issues or Q&A? Any of those threads you researched mention faulty fuel pumps or something similar/related?

 

Also, was the battery recently replaced? Sometimes an older battery will check out fine, but will not have sufficient reserves over time.

 

I like SmoothZ’s line-of-questioning.

Your comment: (“Occurs after long drives, or short ones, but if you let the car set for about an hour, will most times restart.”) makes me suspicious of a fuel delivery problem. A faulty fuel pump could cause the erratic symptoms.

I once experienced a nearly identical problem with a different car (not the Z). The fuel pump was operating with inconsistent pressure allowing occasional vapor locking. I only discovered the problem because it occurred in warm and/or humid weather (when a vapor lock would be more likely). Replacing the fuel pump fixed the problem.

I know how frustrating things like this can be so I sincerely hope you can get this solved quickly.
--Spike

 

That sucks.. Im guessing the engine is cranking and not starting? Have you thrown catalytic converters at the problem? If they are clogged or semi clogged might give issues same with air intake...

Other then that fuel seems like a good hypothesis. Eather too much going in and flooding it out, or none getting where it needs to be. Could be a fuel filter clogged, a pump going faulty..

Engine needs air fuel and spark. Given its cranking and not just a bad starter or battery.

 

I realize this is an old thread. I am providing a response for those who run across this [similar] issue and for aiding in troubleshooting.

I had the same issue as OP, went through all the ignition/no start troubleshooting procedures and checks.

I ended up changing my battery twice, due to something killing it. Troubleshot wiring, and checked fuses. Had the system scanned by advance auto, and a car repair center. They could find anything wrong. Alt was changing and battery was taking the charge - had the Alt checked out thinking one of the diodes shorted out causing a serious drain. Everything checked out fine as far as system test were showing.

Long story short, Googled the issue and found that the "starter" could be my issue. Starter was original, took it out and had it checked. Checked out fine on three tries during system checks, failed on fourth - replaced it. I don't recall the fault issue. No issues since.