Engine-CodesJeep – P0390 Jeep

P0390 Jeep Code - Camshaft Position Sensor Circuit Bank 2 Sensor 2

Quick Answer

The P0390 code for Jeep vehicles indicates a problem with the Camshaft Position Sensor Circuit for Bank 2 Sensor 2. Common causes include Faulty camshaft position sensor, Wiring or connector issues in the camshaft position sensor circuit, Engine timing belt or chain problems. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0390 Jeep indicates Camshaft Position Sensor Circuit Bank 2 Sensor 2.
Common causes
Common causes include Faulty camshaft position sensor, Wiring or connector issues in the camshaft position sensor circuit, Engine timing belt or chain problems.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0390 Jeep Description

The P0390 code for Jeep vehicles indicates a problem with the Camshaft Position Sensor Circuit for Bank 2 Sensor 2. The camshaft position sensor is responsible for monitoring the position of the camshaft in relation to the crankshaft. This information is crucial for the engine control module (ECM) to determine the correct timing for fuel injection and ignition. Bank 2 Sensor 2 specifically refers to the sensor located on the second bank of cylinders and the second sensor in the exhaust system.

OBDII Code P0390 Jeep - Camshaft Position Sensor Circuit Bank 2 Sensor 2
P0390 Jeep Code - Camshaft Position Sensor Circuit Bank 2 Sensor 2

Common Causes of P0390 Jeep

  1. Faulty camshaft position sensor
  2. Wiring or connector issues in the camshaft position sensor circuit
  3. Engine timing belt or chain problems
  4. ECM malfunction
  5. Mechanical engine issues affecting camshaft position

Symptoms of P0390 Jeep

  1. Check engine light illuminated on the dashboard
  2. Engine misfires or rough idling
  3. Decreased fuel efficiency
  4. Engine stalling or difficulty starting
  5. Loss of power while driving

How to Fix P0390 Jeep

  1. Diagnose the issue by using a scan tool to verify the P0390 code and check for any related codes.
  2. Inspect the camshaft position sensor, wiring, and connectors for any signs of damage or corrosion.
  3. Replace the camshaft position sensor if it is found to be faulty.
  4. Test the sensor circuit to ensure proper operation.
  5. Clear the code and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P0390 Jeep

The cost of repairing a P0390 code for a Jeep can vary depending on the specific model and year of the vehicle, as well as the extent of the issue. Generally, replacing a camshaft position sensor can cost between $100 and $200, including parts and labor. Additional costs may be incurred if there are wiring or connector issues that need to be addressed. Labor rates at auto repair shops typically range from $80 to $150 per hour, so it's recommended to consult with a professional for a more accurate estimate based on your location and vehicle.

Tech Notes for P0390 Jeep

In the event of a failure in either the Crankshaft Position (CKP) Sensor or Camshaft Position (CMP) Sensor, the engine can still start. The Powertrain Control Module (PCM) is capable of determining the engine position and initiating startup based on one of these two inputs. However, there may be a small delay in starting as the PCM needs time to establish synchronization. If either the CKP or CMP Sensor signals are absent during engine cranking, a Diagnostic Trouble Code (DTC) is recorded, and the Malfunction Indicator Lamp (MIL) lights up.

Need more information about the P0390 Jeep code?

Need more information on how to fix the P0390 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0390 Jeep code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0390 Jeep Code

1. What does OBDII code P0390 for a Jeep mean?

The code P0390 for a Jeep indicates a problem with the Camshaft Position Sensor Circuit for Bank 2 Sensor 2.

2. What are common symptoms of a P0390 code in a Jeep?

Common symptoms of a P0390 code in a Jeep include rough idling, stalling, poor acceleration, and difficulty starting the engine.

3. What are possible causes of a P0390 code in a Jeep?

Possible causes of a P0390 code in a Jeep include a faulty camshaft position sensor, wiring issues, a damaged sensor connector, or a problem with the sensor circuit.

4. How can I diagnose a P0390 code in my Jeep?

To diagnose a P0390 code in your Jeep, you can use an OBDII scanner to retrieve the specific code, visually inspect the camshaft position sensor and its wiring, and perform a continuity test on the sensor circuit.

5. Can I drive my Jeep with a P0390 code?

It is not recommended to drive your Jeep with a P0390 code, as it can lead to more serious engine issues and potential safety hazards. It is best to address the problem promptly.

6. How do I repair a P0390 code in my Jeep?

To repair a P0390 code in your Jeep, you may need to replace the camshaft position sensor, repair damaged wiring or connectors, or reset the engine control module after fixing the underlying issue.

7. Are there any DIY tips for fixing a P0390 code in a Jeep?

While some basic troubleshooting like checking connections and wiring can be done DIY, it is recommended to have a professional mechanic diagnose and repair a P0390 code to ensure proper resolution.

8. Is the P0390 code specific to Jeep vehicles?

The P0390 code is not specific to Jeep vehicles; it is a generic OBDII code that can appear in various makes and models, indicating a similar issue with the camshaft position sensor circuit.

9. Can a P0390 code cause other problems in my Jeep?

Yes, if left unresolved, a P0390 code can cause issues like poor fuel efficiency, engine misfires, and potential damage to other engine components over time.

10. How much does it cost to repair a P0390 code in a Jeep?

The cost to repair a P0390 code in a Jeep can vary depending on the specific underlying issue, parts needed, and labor costs. It is recommended to get quotes from different mechanics for an accurate estimate.

Discuss the causes and fixes for P0390 Jeep OBDII Code

Code P0390 Jeep comments

No comments found for this page.