Question about 2001 Ford Mustang

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A p0340 trouble code and i changed the cam position sensor and all 4 o2 sensor's on a 01 ford mustang gt with a 4.6

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  • gerry bissi May 11, 2010

    some codes are the result of an engine problem, not an electronic engine control item. Check for base engien & electrical problems.

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Code P0340 is a camshaft position sensor CIRCUIT fault. This means it can be a bad sensor, wiring fault (loose connector, short, open), or even a bad PCM. Since you've already changed the camshaft position sensor you've eliminated that possibility. It's time to do some electrical troubleshooting. That, of course, depends upon your skill set for this type of work and equipment (mostly a good dmm and schematics). If you're not equipped for this then you'll likely have to seek assistance from a local shop.

If this reply answers your question then please take a moment to rate this post. - Thanks.

Posted on Jun 30, 2009

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My engine light came on in my 2005 Ford Mustang GT and the code reads: Circuit A, Cam Shaft Position Sensor. Then my RPM gauge worked then stopped working then worked then not. I was driving my car and the...


Don't think it is the computer , wiring issue more then likely !
P0340 Camshaft Position Sensor Circuit Malfunction
P0340 - Camshaft Position Sensor 'A' Circuit Malfunction
Do you know anything about testing automotive electronics , an electrical circuits ?

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CAM or Camshaft Position Sensor Testing


Apr 30, 2017 | 2005 Ford Mustang

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Mustang error codes P0340 , P0344


These are camshaft position sensor codes. Replace camshaft sensor.

Apr 18, 2017 | 2006 Ford Mustang GT

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Apr 08, 2017 | 2005 Ford Mustang GT

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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
- Starting system circuit
- Dead (Weak) battery
P0340 FORD Description The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.

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.

When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
P0430, main catalyst is worn out.

Dec 04, 2012 | 2006 Ford Taurus

1 Answer

I have 2000 ford focus im working on and I had code po340. so I replaced the cam and crank sensor. It still pops threw the air intake and dies when put in gear. Timming belt is newer and still in time


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

Sep 05, 2011 | 2000 Ford Focus

3 Answers

P0340 code. I Changed cam sensor and checked wiring. what else could be wrong? Jeep cherokee, 6 cil


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

Feb 20, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Code p0340 need location on 2004 sebring 2.7 v6



P0340 OBD-II Trouble Code
Technical Description
Camshaft Position Sensor Circuit Malfunction


What does that mean? 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
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

Also, the cams/crank are out of alignment, thats why you are getting a cam position code (P0340). For more details about your model, you can visit autozone.com (free register)

Hope helped whit this (remember rated this help) Good luck.

Oct 23, 2009 | 2004 Chrysler Sebring

2 Answers

Most common cause for code P0340 of 95 Ranger


Hi, the cam shaft sensor will be located Under the hood, center, upper engine area, mounted behind rear of intake manifold, in the engine block.


This is a magnetic or hall effect sensor. It sends a signal to the computer relaying information about shaft speed, position and acceleration or deceleration. This information determines when the fuel/air mixture needs to be ignited and how much mixture is needed for the engine.

The possible causes of failure will be faulty housing or faulty wires as well. A faulty ECM could trigger a false alarm as well. this is highly unlikely but, possible in most cases. The most reported reasons is flat out sensor failure.

May 21, 2009 | 2001 Ford Windstar

1 Answer

03 Taurus with DTC P0340, P1336


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


P0340 Ford Camshaft Position Sensor Circuit Malfunction


P1336 Ford Crankshaft/Camshaft Sensor Range/Performance












Jan 18, 2009 | 2003 Ford Taurus

1 Answer

2004 dodge stratus with 2.4L


Hi...
The Code P0340 on your Stratus is :
Camshaft Position Sensor Loss signal.
Ok, The first step is check tha condittion on the connector.
For corrosion, bent pins or damaged wires.
If you found that everything is ok.
Replace the Cam Position Sensor.
The Cam Position Sensor, Is common that the Cam fail on this Vehicle and similars of this.
Tha Cam position sensor Is located:
At end of the engine head, driver side. Is attached with 4, 10mm
screw, and the connector at the center of the sensor.

I hope this help on your problem.
Thank you for use fixya...

Aug 29, 2008 | 2004 Dodge Stratus

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