98 Maxima will not start, code from reader is P0340 Camshaft Position Sensor. Will not fire at all even with starting fluid.

This video may help ... the sensor is underneath the timing belt cover so it is a bit involved to get to ....
https://www.youtube.com/watch?v=RHMe3S7RQ68

code p 0340 refers to camshaft position(CMP) sensor A bank 1--circuit malfunction===causes wiring---CMP sensor ---ECM
because it denotes bank i ( bank closest to the fire wall) did you change the correct sensor
check for wiring and harness conditions ait it may run close to the manifold and be worn through or broken at places

Yes, if the camshaft position sensor has failed, your vehicle won't start.

P0340 DODGE - Camshaft Position Sensor Circuit Bank 1 Sensor 1

Possible causes- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery Tech notes Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code, also a loose worn cam belt can cause this code. Has the belt ever been replaced?.

P0340 JEEP - Camshaft Position Sensor Circuit engine cylinder Bank 1 Sensor 1

Possible causes- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery

Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code.

Read more: http://engine-codes.com/p0340_jeep.html#ixzz25iQflrEb

Hi there:

This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it.

Symptoms can include:

• Hard starting or no start
• Rough running / misfiring
• Loss of engine power

A code P0340 could mean one or more of the following has happened:

• a wire or connector in the circuit could be grounded/shorted/broken
• the camshaft position sensor may have failed
• the PCM may have failed
• there exists an open circuit
• the crankshaft position sensor may have failed

With a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

• Visually inspect all the wiring and connectors in the circuit
• Check for continuity in the circuit wiring
• Check the operation (voltage) of the camshaft position sensor
• Replace the camshaft position sensor as required
• Check the crankshaft position circuit as well
• Replace circuit wiring and/or connectors as required
• Diagnose/replace the PCM as required

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

I am not sure what "slip n tcs" means but on the 2005 nissan maxima the code P0340 is for the camshaft position sensor circit on bank 1, which is in the rear of the engine compartment. Code P0345 is for camshaft position on bank 2, which is in the front of the engine compartment. The images show the Cyl banks and a cam sensor.

P0340 - Camshaft Position Sensor Circuit Malfunction. Possible causes - Harness or connectors (The sensor circuit is open or shorted)
- Camshaft position sensor may be faulty
- Camshaft (Intake) may be damaged
- Starter motor may be faulty
- Starting system circuit
- Dead (Weak) battery Possible solution - Charge battery
- Repair harness or connector
- Replaced Camshaft Position Sensor.

I have a 1999 BMW 740 il My SES light came on so I hooked up my OBD code reader p0340 - Camshaft Position Sensor Circuit Malfunction is what came up. so I went to the BMW parts department and bought the Camshaft Position Sensor.
I Replaced the with the new. My SES light was still on so I hooked up the OBD reader again hoping it may reset my SES light but it didn't what did happen is the OBD reader came up with the same code (p0340 - Camshaft Position Sensor Circuit Malfunction) witch is what I just replaced. now I'm at a loss. I'm not sure how to reset my SES light and if I just replaced the Camshaft Position Sensor why dose it the OBD code p0340 still come up. Any suggestions?

it sounds like you have bigger problems if your car does not crank(turn over) then your timing belt could have broken and the one piston could be hitting a valve causing it to be locked up.normally when any sensor is bad car engine still cranks it just doesn't start.