P0349 - OBD Trouble Code

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Is your vehicle’s Check Engine Light illuminated? Are you experiencing sudden decrease in engine power and acceleration? Is there a drop in the fuel economy with increased level of emissions? All these indicate problem with the fuel delivery system and the Powertrain Control Module, thus flashing OBD Code P0349 error.

Deviations in system reference voltage that exceed 10-percent of the manufacturer’s specified reference value may cause a code to be stored and a malfunction indicator lamp to be illuminated. These deviations are perceived by the PCM as incorrect camshaft position. Some vehicles will store a code and illuminate a service engine soon lamp on the first drive cycle and others require multiple drive cycles (usually three) for a service engine soon lamp to be illuminated. Nevertheless, a code should be stored on the same drive cycle in which the initial failure has occurred.

What causes this problem with the Camshaft Position Sensor A Circuit Intermittent (Bank 2)?

• Faulty Camshaft/crankshaft sensor or circuit
• Engine fluid leakages on sensor and circuit
• Damaged/corroded wiring and connectors
• Weak battery
• PCM/ECM failure

1. Camshaft Sensor - Damaged/faulty sensor can give wrong information to the PCM and hamper the performance of the vehicle. Replace old sensor now!
2. Powertrain Control Module - In rare conditions, the PCM can also get damaged and store wrong codes. Buy PCM related components form us now!
3. Diagnostic Tool - You will require professional diagnostic tools to resolve OBD code error. Grab the best deals today!
4. Starter Motor - If the starter motor has gone bad, replace it immediately. Buy new one form us.
5. Car Battery & Cables - Weak battery and damaged cables can also be a reason for this code to flash. Replace with the new one immediately.
6. Ignition Spark Plug - Replace faulty spark plugs when found so as it can be a quick solution to this problem. Buy new spark plugs from us.
7. Timing Belt and Pulleys - Inspect for timing system faults and replace the components as required.

The engine control module (ECM) uses cam sensors to determine the fuel delivery and engine timing. If the pressure drops too low, the PCM will set code P0349. Some of the prime symptoms of this problem are mentioned below;

Common Symptoms

• Low engine power and limited output
• Abnormal throttle response and hard cold starting
• Declined fuel economy
• Sluggish Engine and lot of noise
• Engine smoking on start-up with increased emissions

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0349:

• Make sure that the battery cable connections are tight and clean. Some people think that it is an obvious step, but if your computer does not get a steady feed of electricity from the battery, it can cause multiple issues. Check for wires and connectors that might be rubbed through, disconnected or loose. It is also important to check the fuse box in your vehicle together with the relay centre that can be found under the hood.
• It is also important to make sure that the fuses are good. Make sure that there is no melted plastic that can cause fire. These are some of the major wiring problems that you will encounter with error code P0349. Once you have completely checked all the obvious things and still you can’t find the right solution, then you have to begin suspecting either the computer or the sensor.
• The camshaft position sensor is defective. Unfortunately, there is no way for you to test it since it will take expensive test and equipment as well as well trained and fully skilled technician to the test the sensor. You can also consider the CMP sensor and install it. This will greatly help you to fix the problem however there is no guarantee without proper diagnosis. 

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Here are some steps which you should follow in order to diagnose this fault code:

• Visually inspect all the wiring and connectors in relation to the sensor and the connector.
• Replace any defective, corroded or shorted wiring and connectors.
• Retest your car’s system once this is done, to ensure that the repairs were done successfully and reconnect the scanner to determine if the codes have cleared.
• Test drive the vehicle to make sure that the malfunction was not intermittent. If the malfunction does seem to be intermittent, use the oscilloscope to evaluate the waveforms delivered by the camshaft, crankshaft and distributor connectors.
• Examine the circuitry for contamination that may have leaked out of the engine and check the voltage at the camshaft sensor to make sure that it is compatible with the voltage recommended by the manufacturer.
• Also check for the PCM failure as it might be faulty and may require replacement or reprogramming.

Common mistakes when diagnosing the P0349 code

Most of the time we tend to diagnose the problem without completely identifying the real cause of it. It is important to follow all the diagnostic steps and examine each component carefully before correcting. Always check for other parts apart from camshaft and crankshaft sensor and circuits.