My service engine soon light came on so i hook it up and the camshaft position sensor code came on so i bout the sensor from autozone and replaced it and the same light for the same code still comes on please help me? oh yeah the would sometimes turn off and later it would turn on again....

have you check for trouble codes...blinking check engine light is for a misfire

P1336 Ford P1336 Ford - Crankshaft Position Or Camshaft Position Sensor Input Signal Error Share
0 ' Add Comment Possible causes
- Faulty Crankshaft Position Sensor
- Faulty Camshaft Position Sensor
- Crankshaft Position Sensor harness is open or shorted
- Crankshaft Position Sensor circuit poor electrical connection
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
What does this mean? When is the code detected?
The Engine Control Module (ECM) has detected a synchronization or signal error from the cam or crank sensors
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall
- Engine difficult to start
P1336 Ford Description
The input signal to the powertrain control module (PCM) from the crankshaft position (CKP) sensor or the camshaft position (CMP) sensor is erratic.

Read more: http://www.engine-codes.com/p1336_ford.html#ixzz3qT9Hiztc

P0340 - Camshaft Position Sensor 'A' Circuit Malfunctionhttp://engine-codes.com/p0340.htmlForum CodePossible 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.
When is the code detected?The camshaft position sensor signal is not detected by the Engine Control Module(ECM) during the first few seconds of engine crankingSymptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine StallP0340 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.

All ways, the camshaft position sensor signal sent to the ECM is intermittent

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 Powertrain Control Module (PCM) or Electronic 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.

Check thos DTC diagnostic and possible solutions about P0344 - Camshaft Position Sensor Circuit Intermittent

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall

Possible causes
- Harness or connectors (The sensor circuit is open or shorted)
- Camshaft position sensor may be faulty
- Camshaft (Intake) may be damage
- Starter motor may be faulty
- Starting system circuit
- Dead (Weak) battery

Possible solution
- Charge battery
- Repair harness or connector
- Replaced Camshaft Position Sensor.
Tech notes
- Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code.


Hope this helps.

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?

If your check engine light is blinking, you can take your car to Autozone, Advanced Auto or other parts house and ask them to get the engine codes. This ios a FREE service. It sounds like your camshaft positioning sensor, Cam Positioning sensor is bad. This is how comuterized systems tell where the cam and crackshaft are to set the timing. It sounds like you have timing issues.

Autozone will read the code and give you a print out of the definition for free.

Or you can google p0340 maybe add galant and you will find out what is is.... (camshaft position sensor)

It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt.
RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs!
Good Luck

no it is not difficult but you can try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

The service engine light DOES NOT mean change your oil. The change oil or maintence required light means change oil. The service engine light is the same as a check engine light and means that there is something (not always really bad) is going on with your motor and need someone that has a code reader to let you know what the code is. Yes that code is a camshaft position sensor code. It is located on the passenger side of the engine in the "valley" between the two cyclinder heads. Its not too hard as long as you have some tools and some skills. Its easiest to remove the serpentine belt and remove the bolts for the power steering pump. That way you can move the pump a little to gain better access to remove the cam sensor. Just replaced one yesterday on a 99 century. Hope that helps!