Error code P0344 signifies that the engine management unit has obtained, or is receiving, an incorrect sign from the camshaft place sensor. The code signifies that the issue was intermittent and should now not exist. An error code might be saved within the engine management unit for a very long time. The p0344 is a generic OBD2 fault code that applies to all vehicle models and makes from the 12 months 2000 onwards.
You might discover different camshaft-related error codes with code P0344. Some examples are P0341, P0342, and P0343. The codes are very related; the distinction is what sort of defective sign the engine management unit has detected.
Some engines have a number of camshaft sensors, however normally, there’s just one. Sometimes you’ll get financial institution info out of your error code when you’ve got a V-engine. If you get this info, the financial institution 1 sensor is positioned at cylinders 1-3-5-7-9, and the financial institution 2 sensor is positioned at cylinders 2-4-6-8-10 and so forth.
In 4-stroke engines, the crankshaft rotates two revolutions per cycle and the camshaft sensor rotates one revolution per cycle. Many older vehicles have just one crankshaft sensor. For this motive, the engine management module doesn’t know which of the rotations the engine is in. Therefore, the engine management module ignites the ignition coils twice per revolution, which known as a “wasted spark”. If a camshaft sensor is used, the engine management module solely ignites the injectors and ignition as soon as per revolution.
Because code P0344 tells us that the issue is intermittent, you’ll most probably simply have a verify engine mild as a symptom. But there might be different signs if the issue is everlasting.
The most typical trigger is a faulty camshaft place sensor, however it’s best to all the time verify the wiring and the connector earlier than changing the sensor. In some instances, the issue might also happen with a low battery voltage. A typical misdiagnosis is to start out by checking the camshaft place sensor. This code signifies that it’s {an electrical} circuit downside and never a camshaft timing downside.
If you might have seen that your car has had low voltage in some unspecified time in the future, recharge your battery and clear the error code of the P0344 to see if it comes again. Sometimes it may be that straightforward.
This is a information on how an skilled automotive technician would diagnose this fault code. It might require some automotive electrical information and a few instruments. Since the error code is intermittent, the error might not happen throughout analysis. But it’s all the time good to verify it.
Always join a battery charger to your vehicle earlier than you begin troubleshooting. I like to recommend getting a charger that expenses over 4 amps. If you do plenty of troubleshooting with the ignition on, the battery could also be discharged if it’s not highly effective sufficient.
Connect an OBD2 scanner to your vehicle. Check the code P0344. At this level, you might have two choices: both you clear the error code and recharge your battery, hoping it doesn’t come again; otherwise you make a correct analysis to see if you will discover any issues.
Locate your camshaft sensor. It’s positioned someplace close to one of many camshafts. You can see a pattern picture of a camshaft sensor on the high of the article. You want to find out when you’ve got a Hall sensor or VR sensor for the subsequent duties. Hall sensors have 3 pins/wires and VR sensors have 2 pins/wires.
Check the connector plug of the camshaft place sensor to see when you can detect harm or unhealthy connections. If you discover green-colored steel, it’s seemingly that water has entered and triggered a foul connection on the pins. You can use an electric cleaner for cleansing. Check for oil leakage across the camshaft sensor and clear it if there’s plenty of oil round it.
The corridor sensor makes use of three wires. One 5 volt energy provide, one floor, and one sign wire.
To diagnose the corridor sensor: Check when you get 5-volt energy with a digital multimeter. Check when you get 5-volt on the sign wire with the ignition on and the connector unplugged. Check when you’ve got floor on the bottom wire.
If you might have all these, your camshaft place sensor could also be broken.
The VR sensor makes use of two wires. One sign wire and one return wire. The best solution to verify this sensor is to measure the ohms between the 2 pins on the sensor with the connector unplugged.
You ought to get a price of round 500-2000 ohms. If you might be getting a price of 0 or nothing, there could also be an open circuit within the sensor and the sensor must be changed.
Unplug the engine management connector and discover out which two pins result in the sensor. Proceed in the identical method with the connector plugged in. You ought to get the identical ohms right here, possibly a bit greater due to the size of the wires. If you get 0 or nothing right here, there might be an issue along with your wiring.
To discover all OBD2 codes, verify our OBD2 Code List.
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