P0152 Dodge Code - O2 sensor 2/1 Circuit High
Quick Answer
The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Heated Oxygen Sensor Bank 2, Intake air leaks may be faulty, Exhaust gas leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0152 Dodge indicates O2 sensor 2/1 Circuit High.
- Common causes
- Common causes include Faulty Front Heated Oxygen Sensor Bank 2, Intake air leaks may be faulty, Exhaust gas leaks.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0152 Dodge Description
What are the Possible Causes of the DTC P0152 Dodge?
- Faulty Front Heated Oxygen Sensor Bank 2
- Intake air leaks may be faulty
- Exhaust gas leaks
- Front Heated Oxygen Sensor Bank 2 harness is open or shorted
- Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
How to Fix the DTC P0152 Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0152 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0152 Dodge Code
1. What does the OBDII code P0152 mean on a Dodge?
P0152 indicates that the oxygen sensor 2/1 (bank 2, sensor 1) is reporting a voltage that is too high, suggesting an overly rich air-fuel mixture.
2. What are the symptoms of a P0152 code on a Dodge?
Common symptoms include reduced fuel efficiency, rough idle, hesitation during acceleration, black exhaust smoke, and the Check Engine Light being illuminated.
3. What causes the P0152 code on a Dodge?
Possible causes include a faulty oxygen sensor, shorted wiring or connector, a rich-running engine due to a malfunctioning fuel injector, or a problem with the powertrain control module (PCM).
4. Can a bad oxygen sensor cause the P0152 code?
Yes, a failing or damaged oxygen sensor can send consistently high voltage signals, triggering the P0152 code.
5. How do I diagnose the P0152 code on my Dodge?
Start by inspecting the O2 sensor wiring and connector for damage or corrosion. Then, use a scan tool to monitor live data and confirm if the bank 2, sensor 1 voltage is consistently high.
6. Can a dirty air filter cause the P0152 code?
While unlikely, a severely clogged air filter can contribute to a rich air-fuel mixture, indirectly triggering the P0152 code.
7. How do I fix the P0152 code on a Dodge?
Repairs may involve replacing the faulty oxygen sensor, repairing or replacing damaged wiring, cleaning fuel injectors, or addressing any issues with the PCM.
8. Is it safe to drive with a P0152 code on my Dodge?
Driving with a P0152 code is not recommended as it can lead to poor fuel economy, increased emissions, and potential damage to the catalytic converter.
9. How much does it cost to repair the P0152 code on a Dodge?
The cost can vary, but replacing an oxygen sensor typically ranges from $150 to $400, depending on parts and labor rates.
10. Can a vacuum leak cause the P0152 code to appear?
No, a vacuum leak generally causes a lean condition, not the rich condition associated with the P0152 code.
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