Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the oxygen sensor on the second side of the engine. It's like the sensor isn't getting enough power to do its job.
The O2 sensor measures the amount of oxygen in the exhaust gases. The 'pumping current trim circuit' helps the sensor work properly, and if it's low, the sensor might not function correctly.
The P22C3 code indicates that the pumping current trim circuit for the oxygen sensor located at Bank 2 Sensor 2 is reading low. This circuit is responsible for adjusting the current to maintain the sensor's operation within its optimal range.
• Check Engine Light is on
• Poor fuel economy
• Rough engine idle
• Faulty oxygen sensor
• Wiring issues in the sensor circuit
• Faulty engine control module (ECM)
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the oxygen sensor with a multimeter.
• Replace the faulty oxygen sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Toyota Camry
• Ford F-150
• Chevrolet Silverado
• Regularly inspect and maintain the exhaust system.
• Ensure proper fuel quality is used.
• Perform periodic engine diagnostics.
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving long distances until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on emissions components.
This code has been associated with issues in vehicles with aging oxygen sensors or those exposed to harsh environmental conditions.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a faulty oxygen sensor can lead to increased emissions, which may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle at idle
The oxygen sensor is located in the exhaust system, typically after the catalytic converter on Bank 2.
Q: What does Bank 2 mean?
A: Bank 2 refers to the side of the engine that does not contain cylinder number 1.
Q: Can I drive with a P22C3 code?
A: It's not recommended to drive for extended periods with this code as it can lead to poor engine performance and increased emissions.
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Universal · Digital multimeter
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.