Intake Air System Leak Bank 2
The ECM detects a leak in the intake air system on bank 2. Air entering downstream of the MAF sensor causes lean fuel trim and unmetered air ingress.
Affected components
- Intake manifold b2
- Intake hoses b2
- Intake gaskets b2
Common causes
- High likelihood: Cracked intake hose between MAF and throttle
- Medium likelihood: Intake manifold gasket leaking
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.