Check Engine code P0340

The Check Engine light came on. The code is reading P0340 – Camshaft Position Sensor
A Circuit, Bank 1 or simple sensor.
Experienced mechanics share their insights in answering this question :
The code P0430 on this car is one of the most common failures that occurs. This code indicates a problem with the crankshaft sensor. I recommend seeking a certified mechanic, such as one from YourMechanic, to come and test your vehicle for you to verify a sensor malfunction. If this is confirmed to be the problem, they will be able to replace your vehicle’s crankshaft position sensor and have the code cleared for you.

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A P0340 error code indicates a problem with the Camshaft Position Sensor A circuit. It`s possible that the wires leading to the camshaft position sensor are faulty, or that the sensor itself has failed. This error code isn`t a sign of bad camshaft timing.
Code P0340 indicates there is a problem with the electrical wiring of the circuit attached to the camshaft position sensor. This issue can result in the display of a multitude of other codes that relate directly to your vehicle`s camshaft. In addition, your powertrain control module (PCM) could also be damaged.
OBD2 Diagnostic Trouble Code P0340 indicates that the Camshaft Position Sensor `A` Circuit Malfunction in Bank 1 has been detected. The camshaft position sensor (CMP sensor) provides information regarding the rotational speed of the camshaft and where the camshaft is positioned in relationship to the crankshaft.
Another cause for the P0340 fault code could be a weak battery. Batteries are often overlooked when it comes to regular maintenance and even though your car starts and drives normally, the battery can lose its capacity and cause a number of issues with the car.
1.1 Ignition Timing Problems

The ignition timing system can also run into problems. For example, if one or more belt cogs wear out, the PCM will notice that synchronization has failed between the camshaft and crankshaft, and set a P0340 DTC.

No. The catalytic converter just burns fumes from the motor, to help lower the amount of toxic gases coming out. A p0340 is a camshaft position sensor code.
Code P0340 is stored. This code may be caused by the camshaft position sensor. Some 2004-`05 Dodge Neons will intermittently experience a P0340 code.
No. The catalytic converter just burns fumes from the motor, to help lower the amount of toxic gases coming out. A p0340 is a camshaft position sensor code.
Like P0340, P0335 also warns about a problem in a sensor`s electric circuit. The difference is that P0335 covers the crankshaft that converts engine power into forward motion, while P0340 involves the camshaft that controls the intake and exhaust valves.
Like P0340, P0335 also warns about a problem in a sensor`s electric circuit. The difference is that P0335 covers the crankshaft that converts engine power into forward motion, while P0340 involves the camshaft that controls the intake and exhaust valves.
The trouble code P0440 means the Evaporative emission control system is malfunction. This malfunction may have been caused by a number of different things including, a loose or missing gas cap, a vacuum leak, a faulty purge valve, an issue with your charcoal canister, incorrect fuel pressure, or electrical issues.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

p0011 code,check engine light one, changed bank 1 vvt solenoid and check engine light still on?
ANSWER : The P0011 code is typically caused by oil issues with the car. I would particularly make sure the engine oil level is not low. The VVT solenoid relies on proper oil levels to do their job. If they don’t have enough oil, they won’t work. You can have a mobile technician from YourMechanic visit your home or office to inspect the Check Engine Light for you. If you follow through with a repair with us you will be reimbursed for the cost of inspection.

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Check Engine light on. Would the computer give all error codes in one shot? How do we know the engine’s condition?
ANSWER : Hi there. From the description you have provided, I’m am inclined to agree with your assessment of a used engine being installed in your vehicle. An inspection of the engine, by a qualified technician could determine whether the engine is sound. The Check Engine Light on and having a TPS (throttle position sensor) code does not necessarily mean the sensor is at fault. Circuit tests should be performed to confirm the fault. The likelihood of the ECM (electronic control module/computer) giving you all the codes at once is remote. Other component failures could occur. Address those as they come up. Even though you already made the purchase, I recommend having your vehicle inspected by a certified technician so that you can get a thorough evaluation of the car’s true condition.

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P2196 OBD-II Trouble Code. came and went in 24 hours. 4 starts.
ANSWER : If the mechanic tested the output (functioning) of the oxygen sensor, especially according to the protocol at this link and found that the sensor was non functioning at that time, what you might be experiencing is a "failing" oxygen sensor and so the latest instance of Code P2196 might be explained by that. A complexity though is Code P2196 has many causes other than a failing oxygen sensor including: a faulty fuel pressure regulator; MAF (Mass Air Flow) sensor; ECT(Engine Coolant Temperature) sensor or damaged ECT wiring; leaking or stuck open fuel injector or injectors; and spark plugs and/or coil pack. Basically, if the Code (P2196) recurs, the oxygen sensor output can be re-tested but the mechanic will hopefully be aware of all these other possible causes of that Code setting. If the Code recurs, you can request a check engine light diagnostic and a certified Mechanic, dispatched by YourMechanic right to your location, will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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Service engine warning, MAF code and O2 sensor code, along with check suspension light are turned on
ANSWER : Hello, it sounds like you have quite a few things going on. I am going to do my best to break them down for you.

First if the engine is very loud when idling and the belt has already been replaced, there may be an issue with the tensioner or idler pulley.
Next, the Navigator is known for needing service to the air suspension system as it gets up in miles, the most common causes of these are the air struts themselves have failed, or one of the air lines has a leak.
Lastly, if the O2 sensor and MAF are continually coming back after the sensors have been replaced, the most common cause would be either an exhaust leak or a vacuum leak.

Qualified technicians such as the ones at YourMechanic will be able to diagnose these issues and recommend the best path to repair, starting with a diagnosis of your warning lights.

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check engine light O2 sensor already replaced same codes still popping up after replacing old O2 sensor
ANSWER : Hi there. What you received from the parts store was a code retrieval, not a diagnostic. The codes are set when a fault is detected against normal operating parameter. The computer does not know what caused the fault, only that the fault meets the criteria for this code to set. There could be a problem in the wire harness, converter, or the ECM. The code and data are needed to properly assess the direction that a diagnosis needs. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a check engine light inspection.

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I have a 2007 dodge ram 1500. Check engine light was on code came up as alternator. Replaced it and the check engine light is stil
ANSWER : Hi there. When an error code is created, it is often stored in the ECU until it is cleared by a professional mechanic during a check engine light inspection. It is possible that this is the source of your error light, especially if you are not having any further problems starting your vehicle.

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Check engine light with a code about insufficient temperature P0126 to the engine.
ANSWER : Hi there. The coolant temperature sensor (CTS) is not working correctly. The sensor is sending a signal that the engine is already warm and when the engine first starts up, it needs more fuel a rich mixture to produce more heat until the engine is hot. When the engine is hot, the fuel backs off making the fuel trend more lean. I recommend replacing the coolant temperature sensor. If you need further assistance troubleshooting your cooling system, then seek out a technician, such as one from YourMechanic, that can assist you with your vehicle.

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Check Engine Light comes on after starting pickup
ANSWER : Hello there, thank you for asking about your 1992 Isuzu Pickup. A professional will have the correct equipment to read OBD1 codes. Retrieving the diagnostic trouble code(s) is the first place to start when diagnosing your vehicle. Increasing RPMs changes engine load, which can in turn affect many different sensors and components, causing the Check Engine Light to illuminate. The only way to narrow down the options and find the culprit is through in person diagnosis with an OEM compatible scan tool. A certified technician from YourMechanic can retrieve the OBD codes at your home or office.

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