P2443

AIR System Switching Valve Stuck Closed Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Increased level of harmful emissions
Deterioration of vehicle dynamics
Possible problems starting a cold engine

Causes

Mechanical jamming of the AIR valve (carbon deposits, corrosion)
Valve control circuit open
Valve control relay malfunction
Problems with wiring harness or contacts
Vacuum leak in the system

How to Fix

Check the mechanical condition of the AIR valve (free movement)
Check the integrity of the electrical control circuit
Check the operation of the control relay
Inspect the wiring harness and contacts for damage
Check the tightness of the vacuum hoses of the system
If necessary, replace the AIR valve

Related codes

P2440 P2441 P2442