2000 frontier will not start, pulled codes & they are p0440, p0325 & p0340, what are these codes and how do i fix them, and will it fix the starting problem, are they related?

code p0325 refers to knock sensor (KS) 1 bank 1 circuit malfunction===causes wiring--poor connection--KS needs replacing.

P0325 Knock Sensor 1 Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329 Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
P0330 Knock Sensor 2 Circuit (Bank 2) -Circuit Malfunction
P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
P0333 Knock Sensor 2 Circuit High Input (Bank 2)
P0334 Knock Sensor 2 Circuit Input Intermittent (Bank 2)
P0335 Crankshaft Position Sensor -Circuit Malfunction
P0336 Crankshaft Position Sensor -Range/Performance
P0337 Crankshaft Position Sensor -Low Input
P0338 Crankshaft Position Sensor -High Input
P0339 Crankshaft Position Sensor -Intermittent
P0340 Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
sorry would a play with this to know for sure ,check the wiring plugs onto the sensors to make sure their not full of oil or corroded

the p0325 code pertains to a knock censor. the p0340 is for your cam shaft sensor. i've had this problem before. try replacing the cam shaft censor first and run the codes again to see if the other still comes up. it should fix the problem. hope this helps

Code 0325 is for a Knock sensor. Code 0340 is for the Cam sensor #1 if this is an engine with 2 heads and it is an indication of a single sensor on single head engines.

So if you do have a multiple hed engine, you may have removed the good sensor and left the bad sensor in the other head.

Remember to wipe the computer memory after installing new parts.

what type frontier is it?? is it supercharged or not? p0340 is a cam position sensor issue. sensor is build into the distributor. by what you are saying, the distributor may be faulty. have you replaced the timing belt at 105k miles?? if belt is broken, distributor will not spin and vehicle will not start.

0325 knock sensor
0344 cam position sensor intermittent
0340 cam position sensor failure

I would replace the cam position sensor from the codes you provided. The knock sensor
would most likely be related to the sensor failure.

I would say that the P0340 is causing your no start problem.....This is a cam sensor code......The cam sensor is in the distributor and is not servicable.....I would recommend taking it to a repair shop to properly diagnose the problem before replacing the distributor.

P0340 is for camshaft position sensor circuit malfunction so the problem can be in you hav already changed sensor, then you need to check wiring from sensor to ecu and if the wires are ok than check the ecu! It can be either of them cousing the problem.

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)
P0325....Knock Sensor 1 Circuit (Bank 1 or Single Sensor)if you have no spark it your cam sensor

po325--ignition system or missfire.