Got an 05 g35 REVUP 6MT. Just finished a clutch and flywheel r&r yesterday, drove for a bit and everything seemed fine. Got up this morning and went for a cruise to put in some miles on the break-in period. Got about 25 miles down the road and the car stalls out in 4th gear at 3k rpm. Felt a bog for a second (same feeling as when my cam sensors were bad) and the car died. Some backstory: I also got a new slave, master, and clutch line so when I was bleeding that I spilt a lot of brake fluid on my crank sensor. I Pulled off, checked connections and hoses, everything looks good. Walked to an oreilleys and bought a crank sensor they had in stock for like $50. Walked back, installed on the side of the road, same thing. Car would crank but would not start. Put the old crank sensor in, tried, no luck. Also scanned the car and seems to be there are no codes stored. Check engine light is illuminated when key is on but I believe it always does that. Anyways, I ordered an OEM crank sensor overnighted, should be here in the morning because I know these cars do not like aftermarket cam and crank sensors. Tomorrow I’m gonna install the crank sensor and also take a multimeter to the harness. Anybody have any suggestions? If this crank sensor don’t fix the problem I’m clueless.

 

here’s a vid of what it was doing. Initially when it died it would just repeatedly crank and not even get close to turning over. 30 minutes or so went by and then it was doing this.

 

Installed new OEM NISSAN crank sensor, did basic ecu relearn procedure, and it still doesn’t want to turn over ;(

 

Check for fuel and spark, are you absolutely sure you didn't just run out of gas? The gas gauge is pretty unreliable and showing 1/2 tank when you're actually empty is common.

 

I’m off work in 1 hour and I will be checking for fuel and spark. The gas is also another thing on my list, gonna throw some in after work and I will report back. Man cleric you’re on this s*** like a hawk lol

 

Problem solved: was out of gas. Guess my fuel gauge is off. New sending unit?

 

There's steps in the FSM section DI - Driver Information on how to test the resistance from the fuel sender to make sure it's sending the correct signal.

It's about 50/50 on whether the fuel pump sender failed or the instrument cluster failed.

It's really easy to test the fuel sender though, start with a full tank of gas, read resistance on pins 2 and 5 of the harness, run it down to about 1/2 tank, measure resistance again, run it down emptier, test it again. If the sender is giving the wrong resistance then it needs to be cleaned or replaced.

Mine has been screwed up for several years, I just go off the odometer. It will read correctly for about 5 minutes then switch to displaying 1/2 tank.

https://www.nicoclub.com/infiniti-service-manuals