Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Have you checked for injector pulse with a noid light on injector 2?
If you have the pulse, then I would perform a compression test on all cylinders with all spark plugs out, followed by a leakdown test.
Can you check this as part of mechanical diagnosis?
Do you need any further help?
I hope my advice has been of assistance to you.