P2BEE
Fuel Control System A Too Lean Bank 2
Fuel control system A on bank 2 reports a persistently lean condition. Long-term fuel trim is at the positive limit, indicating insufficient fuel delivery or unmetered air ingress.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Rough idle, possible stalling
- Hesitation or hard cold start
- Power loss under load
Common causes
Ordered by how often each turns out to be the cause.
- Vacuum leak downstream of MAFCommon
- Fuel rail pressure lowPossible
Parts involved
- Fuel Injectors
- Fuel Pressure Regulator
- Intake System
P2BEE is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.