[SOLVED] Dodge P0158 Code: Quick Fix For High O2 Sensor Circuit

The OBD code P0158 for Dodge indicates an issue with the Rear Heated Oxygen Sensor Bank 2. Symptoms include the Engine Light ON, increased fuel consumption.

Causes may include a faulty sensor, wiring harness issues, fuel pressure problems, or intake/exhaust leaks.

This is a moderate issue that should be addressed promptly.

A possible fix involves inspecting and repairing the sensor, wiring, and related components.

Repair Importance Level	6.67 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	6.67 (Out of 10)

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Symptoms of the Dodge p0158 OBD Code

The Dodge P0158 fault code indicates an issue with the oxygen sensor circuit high voltage.

Symptoms: Engine Light ON.
Higher fuel consumption.

Causes of the Dodge p0158 OBD Code

Possible reasons for Dodge fault code P0158 include faulty oxygen sensor, wiring issues, or exhaust system leaks.

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P0158 can be caused by a Faulty Rear Heated Oxygen Sensor Bank 2.
A Rear Heated Oxygen Sensor Bank 2 harness that is open or shorted.
A Rear Heated Oxygen Sensor Bank 2 circuit with a poor electrical connection.
Inappropriate fuel pressure.
Faulty fuel injectors.
Intake air leaks.
Exhaust gas leaks.

Fixing Dodge Error Code p0158 Step By Step

Address the faulty oxygen sensor in bank 2 sensor 2 for Dodge fault code P0158.

To fix Dodge OBDII code P0158, start by reviewing the possible causes mentioned above.
Visually examine the corresponding wiring harness and connectors for any damage.
Check the connector pins for signs of being broken, bent, pushed out, or corroded.
If no issues are found with the wiring, consider replacing the faulty oxygen sensor responsible for the P0158 code.
Clear the fault codes after replacing the sensor to see if the issue is resolved.
If the problem persists, further diagnostics may be needed to identify any underlying issues with the vehicle’s engine or emissions system.

Cost Of Fixing Dodge p0158 Fault Code

Diagnosing and repairing Dodge fault code P0158 involves testing and potentially replacing the oxygen sensor.

The cost to diagnose and fix the Dodge OBD code P0158 depends on the estimated 1. 0hour repair time.

Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150, excluding parts.

Costs may vary based on shop rates and the complexity of the repair.

Details of the Dodge p0158 OBD Code

Dodge fault code P0158 relates to oxygen sensor circuit high voltage (Bank 2, Sensor 2).

Dodge OBD code P0158 means that the O2 sensor circuit on Bank 2 Sensor 2 is showing high voltage for an extended period of time.

This code is triggered by the Engine Control Module (ECM) when it detects that the O2 sensor voltage remains above a specified voltage range for too long.

The O2 sensor involved in this code is located on Bank 2 (the side of the engine opposite the number 1 cylinder) and is the second sensor downstream (after the catalytic converter).

This sensor is responsible for monitoring the efficiency of the catalytic converter and providing feedback to the ECM for fuel trim adjustments.

When P0158 is set, it indicates a potential issue with the O2 sensor itself, the wiring/connectors associated with the sensor, or a problem with the catalytic converter.

It’s important to inspect the sensor, wiring, and converter for any faults or damage to determine the exact cause of the high voltage reading.

Mechanic’s Tech Notes

Detailed information on Dodge fault code P0158, including possible causes and diagnostic steps for resolution.

To diagnose and fix OBDII code P0158 on a Dodge, start by checking the wiring harness and connectors related to the downstream oxygen sensor (Bank 2 Sensor 2).

Use a voltmeter to test the sensor’s heater circuit for proper voltage and resistance.

Inspect the connector pins for any damage, corrosion, or poor connections.

If the wiring and connectors look good, the issue may lie with the oxygen sensor itself.

Consider replacing the downstream oxygen sensor to resolve the P0158 fault code.

Remember to clear the code after making any repairs to see if it returns.

FAQ

1. What does OBD code P0158 mean in a Dodge vehicle?

OBD code P0158 in a Dodge means an issue with the Rear Heated Oxygen Sensor Bank 2. Check sensor, wiring, fuel system, and intake/exhaust for faults.

2. What are the common symptoms associated with fault code P0158 in a Dodge?

Common symptoms for P0158 in a Dodge include Engine Light ON, higher fuel consumption. Causes may be a faulty Rear Heated Oxygen Sensor Bank 2. Fix: Inspect wiring and connectors.

3. How can I diagnose and repair OBD code P0158 in my Dodge vehicle?

Diagnose and repair OBD code P0158 in your Dodge: Symptoms Engine Light ON, higher fuel consumption. Causes Faulty Rear Heated Oxygen Sensor Bank 2. Fix Inspect wiring and connectors.

Wrap Up

If your Dodge is displaying OBD code P0158, you may experience poor fuel economy, rough idling, or a decrease in engine performance.

This code typically indicates an issue with the oxygen sensor bank 2 sensor 2 circuit, such as a faulty sensor, damaged wiring, or a poor electrical connection.

To address Dodge OBD code P0158, start by inspecting the wiring harness and connectors for any signs of damage or corrosion.

Test the oxygen sensor’s resistance and voltage output to determine if it needs replacement.

Ensure proper connection and integrity of the sensor’s wiring to the vehicle’s