I just picked up a cheap G37x. I replaced the battery but I cannot get it to start. I'm thinking it's the fuel pump, I pulled the back seat up and can't hear the pump priming or anything. Just cranks and cranks and cranks but doesn't fire. Are pump failures common on these? Tbh this is my first car that isn't a Toyota, so I'm eager to learn. I was just hoping it was a dead battery.

 

Welcome, and while it could be a dead battery or corroded battery cables, there are other possibilities as well. How many miles are on this car? Did it come with two key FOBs, or only one aftermarket FOB? Could it be an immobilizer (factory anti-theft) issue?

 

It's a brand new battery. I'm getting over 12 volts. It's got one key fob. It will crank but won't fire.

 

So if anyone's interested. I/m not getting any power to the fuel pump, I don't hear a prime or anything. Fuses are all good.

 

There is potentially a long list of things that could cause a crank – no start condition.

Everything from numerous faulty circuits or components to the anti-theft system (which only seems to stop law abiding owners from starting their car based on the number of thefts posted on the forum recently).
Your issue is made a bit harder to remotely troubleshoot since you don’t have any prior history on the car.

One of the first steps I can think of would be to attach a code reader and see what codes show up, clear the codes, attempt to start and see what codes continue to show up. That would at least narrow down the possibilities.

 

No codes are coming up. I have had a code reader on it this entire time. Would it still try to crank even if it was an anti theft issue?

 

Does this warning light come on?

 

It does not.

 

There are a few fuel pump threads on the forum. Run a search and see if there is anything that might help you figure it out.

you can also download the factory service manuals from Nico Club https://www.nicoclub.com/nissan-service-manuals

Do you know anything about the car prior to your purchase?
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absolutely nothing, it's an auction car I got for cheap. I actually have a service manual for it. It's just not all that helpful for diagnostic stuff

 

would a bad crank sensor cause this kind of a no start?