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P0334 is a diagnostic trouble code (DTC) for "Knock Sensor 2 Circuit Input Intermittent (Bank 2)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $69.99. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P0334 Trouble Code indicates that the knock sensor on a cylinder is not working according to the manufacturer’s specifications.
The code means that there is a problem with one of the knock sensor circuits. These circuits have a single 5-volt signal wire. When the voltage is 10% too high or too low compared with the manufacturer’s guidelines, the P0334 code will be stored. With some vehicles, it will require several failure cycles before the malfunction indicator lights up on the vehicle.
The P0334 code can occur for several reasons:
One of the common symptoms of a P0334 code is a lack of power in the vehicle, along with a spark knock. There could also be hesitation when you try to accelerate. In addition, the engine light or the service light will likely turn on to indicate that there is a problem. The light could stay on constantly, or it might only appear intermittently.
The mechanic will utilize an OBD-II scanner to help diagnose the problem. They may also make use of a voltmeter when trying to diagnose the code. They will perform a visual inspection of the wiring and the connectors to make sure there are no problems that they can see. They will also clear the codes and reset the system, and then see if it returns after restarting the vehicle and taking it for a road test.
One of the biggest mistakes that can occur when diagnosing the P0334 code is believing that the only problem lies with the knock sensor. Replacing the knock sensor when there are other issues with the engine could cause greater issues down the road. It is important for the mechanic to make sure that the sensor is not just doing its job and indicating a serious problem with the engine.
The P0334 code’s seriousness can vary. In some cases, the mechanic might find that it is only a problematic sensor. This in and of itself would not cause serious engine problems. However, there is also the possibility that the sensor could be indicating a larger problem with the engine. It is never a good idea to ignore any issues with your vehicle, even if you feel it might only be a problem with the sensor.
Depending on the overall issue, there are a number of repairs that can help to remove the P0334 code and get the car in shape. They include:
The mechanic can clear the codes and retest the vehicle as they perform different repairs to find the cause of the problem.
It is common for many people to pay very little attention to these codes, believing that they are just some simple sensor issues that can be ignored until later. In some cases, this might be true. However, there could be a much greater problem with your vehicle. It is always a good idea to take the vehicle to a mechanic as soon as possible. They can properly diagnose the vehicle and repair any issues they find.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.