p2187
Moderate
Alfa Romeo · Sedans & Sports Cars
System Too Lean (Bank 2)
Quick Answer
Error code P2187 on your Alfa Romeo Sedans & Sports Cars 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
Check oxygen sensor on bank 2
2
Verify fuel pressure
3
Inspect fuel injectors
4
Test for vacuum leaks
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 injector
Gaskets
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