What this code means

The ECU detected that the long-term fuel trim for Bank 2 has reached the maximum lean correction limit. The fuel system cannot add enough fuel to compensate for the lean condition.

Symptoms

• Check Engine Light
• Rough idle
• Lean misfire Bank 2
• Hesitation
• Reduced power

Common causes

• Vacuum leak at Bank 2 intake
• Clogged fuel injectors Bank 2
• Low fuel pressure
• Intake manifold runner flap issues
• MAF sensor fault

Diagnostic steps

1. Smoke test for vacuum leaks at Bank 2
2. Compare fuel trims between banks
3. Test fuel injector flow Bank 2
4. Check fuel pressure
5. Test MAF sensor output

Repair notes

Repair vacuum leaks or fuel delivery issues specific to Bank 2.

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