P2431

AIR System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Deterioration of the emission reduction system
Increased fuel consumption
Unstable engine operation at idle
Reduced engine power

Causes

Malfunction of the AIR system pressure/air flow sensor
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Mechanical damage to the AIR system (air leaks)
ECM problems (rare)

How to Fix

Check the integrity of the wiring harness to the sensor
Inspect the sensor connectors for corrosion or damage.
Check the functionality of the pressure/air flow sensor
Check the tightness of the AIR system for leaks
If necessary, replace the sensor or repair the wiring

Related codes

P2432 P2433 P2430