Hello all I recently arched my 350z battery while removing it to help start my friends car after that the car needed a jump to drive home I got home tested the battery and it was fine car fired right up no issues so the next morning I drove it to the beach about 30 min drive with no issues I shut the car off then realized I had to turn the car around so I started it back up turned it around and as I was pulling into the spot the car shut off…and then I got a crank no start with rad fans on full blast I went threw all the fuses in the car I found a blown ignition fuse behind the battery I replaced it but still crank no start the anti theft light is solid red when the keys in the on position is it possible I cranked the car to many times before replacing the ignition fuse and it’s just stuck in theft mode ? Will theft mode cause ecu not to talk ? Or is it possible a bad ecu could trigger theft mode ? Because after replacing that fuse I still have rad fans on full blast (which I have been told means ecu not talking) Should I just have the stealership diagnose the car ? My scanner won’t connect to the car my fuses are fine my relays have been swapped with each other . Currently in between jobs broke af and now my only car won’t start haha the car is a 2005 with 110k miles automatic transmission thanks in advance guys I’m at a loss… is there a way I can make sure the ecu is even getting power ?

 

Unlock vehicle with remote. Try again

 

im dealing with a similar issue on my 2004 350z. A week ago when coming home from work i noticed my oil pressure was at 120 at 3.5k RPM in 6th gear. I drove home as slow as possible and then i replaced the oil pressure sensor. Car ran fine i drove it around my block a couple times. Shut it off. The next morning for work i tried starting it. Car cranks but engine wont turn on.