p2187
Moderate
MINI · Hatchbacks & Crossovers
System Too Lean (Bank 2)
Quick Answer
Error code P2187 on your MINI Hatchbacks & Crossovers means: System Too Lean (Bank 2). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Test oxygen sensor voltage and switching rate
2
Check fuel pressure at fuel rail on bank 2 side
3
Inspect fuel injector operation
4
Perform smoke test for vacuum leaks
5
Verify exhaust system integrity
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Oxygen sensor
Fuel injectors
Fuel pressure gauge
Vacuum hoses
Smoke machine
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