Question about 2002 Hyundai Accent

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Ok, used a code reader...

Came up with code p0340 cam position sensor circuit fault. now, question is, is this re-set able? is it a faulty sensor? or, as was suggested before, maybe the timing belt jumped a cog, causing the fault? grrrrr...i hate electronics! thanks for the previous suggestions! btw, seems like there's plenty of fuel pressure...of course, i've no frame of reference..but, it was definitely under pressure.

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Here is a list (courtesy of www.obd-codes.com).
Symptoms Symptoms can include:

  • Hard starting or no start
  • Rough running / misfiring
  • Loss of engine power
Causes 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
Possible Solutions 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
Best of luck.
Greg
p.s. the code can be reset but if a problem exists, it will return

Posted on Jul 03, 2009

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I have a nissan murano 2005 with the code p1701 and a p0340 how can i use them to repair these codes


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Camshaft Position Sensor harness is open or shorted- Camshaft Position Sensor circuit poor electrical connection- Faulty starter motor- Starting system circuit-
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P1701- Fuel trim

I would suggest replacing the camshaft position sensor. When the sensor fails it can cause changes in fuel system that the computer can detect. So I suspect once the camshaft sensor ivreplaced that the P1701 code will be gone.
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What is lexus es300 fault code p0340


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I changed out the MAP sensor,and the idle air sensor on my 2006 Ford Taurus. This was before I had the fault code read at a dealer. Code came back as P0340, and P0430 Band 2 cat worn out. I had the cam...


P0340 FORD - Camshaft Position Sensor Circuit Bank 1 Sensor 1Possible causes- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
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When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.

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98 caravan 2.4 0340error code


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Possible causes- Camshaft Position Sensor harness is open or shorted
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Basically this means that the the car's computer has detected that not all of the engine's cylinders are firing properly.

A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

Symptoms may include:
the engine may be harder to start
the engine may stumble / stumble, and/or hesitate
other symptoms may also be present

A code P0300 may mean that one or more of the following has happened:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer


DTC P0340 - Camshaft Position Sensor Circuit Malfunction
This fault code 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


If need additional details, feel free to contact us in the fault code links. 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, and have a nice day.

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Ford f350 crew cab super duty 7.3 diesel runs rough and turns off randomly while driving sometimes restarts in neutral allot of times i have to stop and put it in park turn key completely off position I...


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I would think it would be just the Camshaft Position Sensor.I looked up the codes and they say pretty much the samething.


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