p2187
Moderate
Porsche · SUVs
System Too Lean at Idle (Bank 1)
Quick Answer
Error code P2187 on your Porsche SUVs means: System Too Lean at Idle (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
PO001PO003PO006PO002PO004PO005
Likely Causes
  1. Vacuum leak at idle
  2. Faulty fuel pressure regulator
  3. Dirty fuel injectors
  4. Oxygen sensor lag
How to Fix It
1
Perform smoke test for vacuum leaks
2
Measure fuel pressure at idle
3
Clean fuel injectors
4
Test oxygen sensor response time
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
Fuel filter
Fuel injectors
Fuel pressure regulator
Oxygen sensor
Related Error Codes
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