p2187
Moderate
SEAT · Sedans & Hatchbacks
System Too Lean at Idle (Bank 1)
Quick Answer
Error code P2187 on your SEAT Sedans & Hatchbacks means: System Too Lean at Idle (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Perform a thorough smoke test of the intake and crankcase ventilation system
2
Check idle fuel injector operation and spray pattern
3
Inspect the PCV valve and crankcase ventilation system for leaks
4
Test fuel pressure at idle and verify fuel pressure regulator operation
5
Check the intake manifold gasket for 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
PCV valve
Fuel injectors
Fuel pressure regulator
Intake manifold gasket
Vacuum hoses
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