P0346 Code: Camshaft Position Sensor “A” Circuit Range/Performance Bank 2

The camshaft position (CMP) sensor measures the position and speed of the engine’s camshaft. It turns its readings into synch pulses that go to the engine control module (ECM) or powertrain control module (PCM). Armed with that information, the control module adjusts how much fuel the injectors spray into the engine.

The PCM monitors the synch pulses from the CMP sensor. If there is an irregularity in the signal or there is no signal at all, the control module will log a P0346 code.

What Does the P0346 Code Mean?

The diagnostic trouble code (DTC) P0346 indicates “Camshaft Position Sensor “A” Circuit Range/Performance Bank 2.” Bank 2 refers to the cylinder bank on the opposite side of the No. 1 cylinder in engines with two banks.

Depending on the engine’s design, the camshaft position sensor may be located in different locations. Possible placements include the distributor housing and camshaft timing gear in older models. For vehicles that use a distributorless ignition system, the CMP sensor may be found in the assembly that replaced the distributor.

The PCM compares the synch pulses of the CMP sensor with the ones stored in its memory. If the computer gets irregular or zero signals from the camshaft position sensor, it will set the powertrain code P0346.

Note: The definition of code P0346 can differ according to the vehicle manufacturer. Check the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P0346 Code?

• Faulty camshaft position sensor
• Circuit problems, such as a damaged wire or poor connection
• A damaged camshaft position sensor reluctor wheel
• An internal engine problem
• An issue with the PCM, such as software in need of an update

What are the Common Symptoms of the P0346 Code?

• Illuminated check engine light
• Intermittent bucking or surging
• Engine intermittently stalls
• Vehicle cranks but doesn’t start
• Misfiring and other related engine performance problems

How to Diagnose the P0346 Code

The P0346 code is a generic powertrain code that various makes and models can log. However, this does not mean that there is a one-size-fits-all solution to identify its underlying problem.

If you’re not confident about conducting diagnostic tests on your vehicle, it’s a good idea to bring it to a professional mechanic. Otherwise, you can go ahead and diagnose the issue yourself. To help you get started, here is a video that can give you an idea of what the process might involve:

How to Fix the P0346 Code

Attempting to fix a P0346 code can become a challenging task if you don’t have the right tools and know-how to test the camshaft position sensor. In most cases, it’s best to leave the job to professionals.

For DIYers with advanced technical knowledge and hands-on experience who prefer to test and replace their vehicle’s camshaft position sensor on their own, it will be helpful to rely on the appropriate repair manual or refer to an online repair database.

Where to Get a New Camshaft Position Sensor to Resolve the P0346 Code

Driving your daily driver becomes a hassle when it has a set code P0346 due to issues like stalling and surging. If a diagnosis reveals a bad camshaft position sensor to be the culprit, don’t worry. At CarParts.com, we have a wide selection of camshaft position sensors sourced from trusted brands in the industry.

It only takes a few minutes to find and order what you need. Simply fill out our vehicle selector and search filters to check out compatible camshaft position sensors that match your preferred brand, price, and specs.

What’s more, you don’t have to wait a long time for your order to arrive. Thanks to our strategically located warehouses across the country, you can expect your orders to arrive at your doorstep in as fast as two business days. If you have questions, we have a 24/7 customer service team ready to assist you anytime.

Shop for a new camshaft position sensor now to resolve this trouble code in no time!