OK, so I got my y-pip put in yesterday, car was running mint all day, then last night I got on it a bit and the engine just cut off. Wouldn't start again. Checked all fuses, all good. ECU is throwing some codes as well

0802 -Crank Position Sensor
0102 - MAF sensor
0902 - ???

Car was running fine w/no problems, now wont start at all. MY only option right now is to take it to the dealer, which I'd like to NOT do. Can anyone help me??

 

Called nissan they say a bad crank pos. sensor will cause the car to do EXACTLY what it is doing. gonna replace it.

 

Those aren't related to the y-pipe anyways. There are 2 crank position sensors, 1 is easy to change, 1 is very difficult.
Good luck!
-Cyrus

 

I guess it was just coincidence that you had the Y pipe installed the day your crank sensor died..., that sucks

 

Any way to tell which one went? Or should I just replace them both?

 

long shot but did you try resetign ecu via neg battery cable

 

theyre both easy...the one on the bottom of the engine is difficult to locate without taking off the splash guard, but requires the same 10mm socket to open.

 

What causes them to go bad anyway?