had the car since 2012; moved north and prked her and got truck for work, rarely drove the z but started her up every week or so. Travel in november left the z for 2 weeks + first frost. Car wouldnt start and was having a harder time starting prior to this.

Wouldnt crank fast emough and got a battery charger and started it up and ran without the charger.


one week later it wouldnt start and wouldnt crank. Replaced battery and spark plugs as it was time for them as well.

Turns over great but wont fire now.

i used ngk iridium plugs i got from autozone.double checked fitting of plugs

found oil in cylinder 6( closest to passenger seat).

cleaned boot and plug- retried with the old plug in cylinder 6 which didnt actually look as bad as i thought they would. Still nothing.

replaced crank angle sensor back in 2014 and engine has no codes.

I may put old plugs back in tomorrow
stumped please help

Edit: is it possible either cam pos sensor can go bad without throwing a code?

Update: read more diagnostic threads on here. The red security light in my dash is constantly on when key is in the most fowads position.

at one point i tried to start last week with low battery and it completely shut down. Im guessing nissan immobilizer kicked in especially since the red security light is constantly on.

I tried re-inserting key into ignition and flipping the key over, nothing

tried steering wheel lock and unlock with ignition key, nada

tried-locking/ unlocking car from outiside multiple times before attempt to start, nada

any help on removing the immobilizer if that is what my issue is?