P2220 low

Intake Air Quality Sensor Circuit (Bank 1)

The P2220 code means the vehicle's onboard diagnostic system has detected: Intake Air Quality Sensor Circuit (Bank 1). This is a low severity code.

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Keep driving?: Yes, but fix soon
DIY difficulty: moderate
Estimated cost: $50 - $250 (parts and labor)

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Common Symptoms

Check Engine Light on
No noticeable drivability issues
Possible slight idle variation
Emissions test failure
Air quality sensor warning

Probable Causes (Ranked by Likelihood)

Failed intake air quality sensor Very High
Damaged or corroded sensor wiring High
Loose or disconnected sensor connector Moderate
Contaminated sensor element from oil vapor Moderate
ECM circuit fault for the air quality sensor input Low

Step-by-Step Diagnostic Procedure

Read the intake air quality sensor value with a scan tool
Inspect the sensor connector and wiring for damage or corrosion
Verify the sensor has proper voltage supply and ground
Clean or replace the sensor if contaminated
Check for related codes that may indicate a broader intake system issue

Frequently Asked Questions

What does the intake air quality sensor do?

The intake air quality sensor measures properties of the incoming air such as humidity or particulate content. It helps the ECM optimize combustion and emissions by adjusting for air quality variations.

Is P2220 common?

P2220 is relatively uncommon and is primarily found on European vehicles that use dedicated intake air quality monitoring as part of their emissions control strategy.

Can I drive with P2220?

Yes, this code typically does not affect drivability. The engine will use default air quality values, which is adequate for normal driving but may not pass emissions testing.