P118A
Bank 3 Probe 1 Voltage Too Low Leakage Air
P118A is an OBD-II diagnostic trouble code meaning: Bank 3 Probe 1 Voltage Too Low Leakage Air. Common causes: air leak in the intake system, oxygen sensor malfunction. Estimated repair cost: $28–89.
Symptoms
- Increased fuel consumption
- Unstable engine operation
- Check Engine light comes on
- Reduced engine power
- Increase in harmful emissions
Causes
- Air leak in the intake system
- Oxygen sensor malfunction
- Damage to the wiring to the sensor
- Sensor Grounding Problems
- Engine control unit malfunction
How to Fix
- Check the tightness of the intake system
- Check the condition of the wiring to the oxygen sensor
- Check the functionality of the oxygen sensor
- Replace the oxygen sensor if necessary
- Check and restore sensor grounding
Related codes
FAQ
What does the P118A code mean?
P118A is an OBD-II diagnostic trouble code that indicates: Bank 3 Probe 1 Voltage Too Low Leakage Air
What causes a P118A error code?
The most common causes of P118A include: Air leak in the intake system; Oxygen sensor malfunction; Damage to the wiring to the sensor; Sensor Grounding Problems.
How do I fix a P118A diagnostic trouble code?
To fix P118A: Check the tightness of the intake system. Check the condition of the wiring to the oxygen sensor. Check the functionality of the oxygen sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P118A?
Yes, but get it checked soon
How much does it cost to fix P118A?
The estimated repair cost for P118A is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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