The crankshaft position (CKP) sensor is used to determine the crankshaft’s position and speed. This information is used by the PCM in your car to control fuel supply and ignition timing. Code P0336 is set off when the powertrain control module notices an issue with the CKP sensor signal. The P0336 code’s symptoms and causes are discussed in this article.
What is the P0336 Code?
The powertrain control module (PCM) identifies an irregular or inadequate signal coming from the crankshaft position, which sets off the P0336 code.
Your vehicle’s electrical or mechanical problems might cause the DTC P0336 to appear. The technical fault is a poor reluctor ring that transmits the crankshaft position information to the crankshaft position sensor, and the electrical problem is mostly a defective sensor.
What is the function of the Crankshaft Position Sensor?
The CKP sensor’s primary job is to record the crankshaft’s rotation speed, monitor the engine’s performance, and keep an eye on the engine valves and pistons. The crankshaft position sensor provides data to the powertrain control module, which uses it to manage the fuel injection and ignition timings.
Your car’s power and pollution performance are both well-controlled thanks to the PCM and CKP sensor’s effective functioning. Your car’s dependability and optimum driveability are made possible by this connected operating system.
A stationary sensor and a reluctor make up the two components of the CKP sensor (rotating disc). A ground wire sensor, a voltage wire sensor and a signal wire sensor are all included in maximum CKP sensors. These three sensors work together to send the RPM signals to your car’s PCM.
The PCM adjusts the fuel injection and ignition timing based on data from the crankshaft position sensor and camshaft position sensor.
The problem code P0336 is sent off when the PCM is unable to make changes because it is not receiving the correct signals from the CKP sensor.
The damaged CKP sensor has to be changed right away. Additionally, if it sits in your automobile for a while, it could harm several other engine components. When replacing the CKP sensor, it is usually advised to utilize original equipment manufacturer (OEM) components.
Causes of P0336 Code
The following are the major common causes of the P0336:
- The teeth of the reluctor wheel have worn down, fractured, or otherwise been damaged.
- The crankshaft reluctor ring has broken.
- The crankshaft position sensor is defective.
- The crankshaft position sensor connection is corroded or damaged.
- There are open wires in the crankshaft position sensor circuit.
- Failures of the Powertrain Control Module (PCM) and the Camshaft Position Sensor
- The high voltage spark plug connections are too close to the crankshaft sensor’s wire.
Symptoms of P0336 Code
- Engine misfiring
- A loose or improperly installed crankshaft reluctor ring
- Intermittent stalling
- An irregular idle
- An illuminated check engine light
- Hesitancy while accelerating
- Sporadic or intermittent engine misfiring
- Engine vibration
- Poor fuel economy; difficulty starting
How to diagnose the P0336 Code?
Check for any further codes by connecting the OBD2 scanner. If you find any issue codes, follow the instructions below.
- Visually inspect the CKP sensor for any obvious damage.
- Check for damage to the reluctor wheel. Keep in mind that it needs to be snugly affixed to the crankshaft.
- Inspect the wires for any indications of burns, shorts, or fractures.
- Look for any evidence of damage in the insulation that encloses the crankshaft harness.
- Check the connector for corrosion, fractures, or a loose connection.
- Ensure that the high-voltage spark plug cable is not too close to the CKP sensor wire.
- After clearing all issue codes, do a test to see whether any of them reappear.
- Use a scanner to check the RPM reading when your car is beginning.
- If there is no RPM reading, use a scanner to check the CKP sensor signal.
- Calculate the resistance of the CKP sensor and CKP sensor wire using a Volt-Ohm meter. The resistance requirements are given by the manufacturer.
- Check the wiring and camshaft position sensor. Since the camshaft and crankshaft sensors are interdependent, problems with the camshaft and its wiring can occasionally have a negative impact on the readings and operation of the CKP sensor.
- After removing the flawed CKP sensor, examine the reluctor ring on the crankshaft. Turn the engine all the way around to make sure it is completely functional.
Mistakes when diagnosing the P0336 Code
- It is a common error to replace the CKP sensor when the camshaft position sensor is the true offender since the CKP sensor and CMP sensor function together.
- Replacement of the crankshaft position sensor without reluctor ring inspection.
- It’s crucial to determine whether there is a wiring issue or whether the engine is misfiring before replacing the CKP sensor.