I know this has been posted lots of times but none of them were able to help me.
i have a 2003 maxima se and yesterday the interior light fuse blew so i changed it and started up the car. I put in 2 led map lights in and went home. I came outside later and started up my car but wouldnt start. All the fuses are good, i just put in a new crankshaft position sensor and no luck. The fuel pump cliks and from what i could see the fuse pump relay- located by the left food area of the driver side- is ok looking. Unless it was burned internally even so my fuel pump still works and makings the humming noise. The spark plugs are good nd so are the coils since there is electricity when u go to crank it. It has gas and there is gas going into the cylinders, since i took off the front of the gas railing and gas was coming thru. I cant figure out if i have to change the cmashaft sensors to or the starter? the battery is good. I also got a p 1800 code for VIAS but no clue what that is and if that code is why it doesnt start. Please help me

 

Crank sensor isn't the problem. Put the old one back in. It does not stop the car from starting (just takes longer). A bad cam sensor will stop it, though.

 

Is the red security led in with the clock on when you crank the engine? If yes, you are immobilized.

 

He said the fuel pump still works. This leads me to believe it's a bad cam sensor (the most common non starting problem).

 

When the car is immobilized, the ECU does not "fire" the fuel injectors. The fuel pump runs as it normally would.

Just tossing out another easy to check possibility.

 

Ah, yes, I got it confused.

He should have a code for it, though, if that were the case.

 

What if it's blinking?

I haven't check my fuel rails yet... but i'm having an issue as well. When i try and start my car, i get a solid crank, but doesn't turn over. I put more gas into the gas tank, and it starts up. 01, 3.0L stick SE. Any ideas?

 

what was the diagnosis on this? i have the exact same car, with the same problem. @beechmon

 

My problem was the car was in security mode. lol. so had to use the clicker to unlock the car... it was that simple.