P0161 Mitsubishi Code - HO2S 22 Heater Performance
Quick Answer
The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection. 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
- P0161 Mitsubishi indicates HO2S 22 Heater Performance.
- Common causes
- Common causes include Faulty Rear Heated Oxygen Sensor Bank 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection.
- 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 P0161 Mitsubishi Description
What are the Possible Causes of the DTC P0161 Mitsubishi?
- Faulty Rear Heated Oxygen Sensor Bank 2
- Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks
- Exhaust gas leaks
How to Fix the DTC P0161 Mitsubishi?
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 P0161 Mitsubishi 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 P0161 Mitsubishi Code
1. What are the common symptoms of OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- Common symptoms include decreased fuel efficiency, rough idle, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- Possible causes include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or a malfunctioning engine control module (ECM).
3. How can I diagnose OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- Diagnosis involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensor and related components, and testing the sensor's heater circuit.
4. What are some repair tips for resolving OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- Repair tips include replacing the faulty oxygen sensor, repairing damaged wiring or connectors, checking and replacing fuses if necessary, and resetting the ECM.
5. Can I continue driving my Mitsubishi with OBDII code P0161 related to HO2S 22 Heater Performance?
- It is not recommended to drive with this code as it can lead to decreased performance and potential damage to other engine components over time.
6. How much does it typically cost to repair OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- The cost of repair can vary depending on the exact cause, but it may range from $100 to $300 for parts and labor.
7. Is it possible to clear OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance without fixing the issue?
- Clearing the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely reoccur, and it is not a recommended long-term solution.
8. How long does it take to repair OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- Repair time can vary based on the specific cause and complexity of the repair, but it typically takes 1-2 hours for a mechanic to diagnose and address the issue.
9. Are there any preventative measures to avoid OBDII code P0161 in a Mitsubishi related to HO2S 22 Heater Performance?
- Regular maintenance, such as changing the oxygen sensor at recommended intervals and checking the wiring for damage, can help prevent this code from occurring.
Discuss the causes and fixes for P0161 Mitsubishi OBDII Code
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The color scheme for bosh 0 258 986 507
Mitsubishi:
2 black - heater (without polarity)
Blue - signal wire,
White - signal ground.Bosch:
2 white - heater (without polarity)
Black - signal wire,
Grey - signal ground
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