What does fault code P2188 mean?

System Too Rich at Idle (Bank 1). Audi vehicle detected a rich mixture condition at idle.

P2188

System Too Rich at Idle (Bank 1)

Q: What are the possible causes of P2188?

High-pressure fuel pump leaking (common on Audi 2.0T); Fuel injector leaking; Oxygen sensor fault; PCV valve fault.

Severity: Medium Fuel & Air Metering Audi Specific

Detailed Description

Audi vehicle detected a rich mixture condition at idle.

Possible Causes

High-pressure fuel pump leaking (common on Audi 2.0T)

Fuel injector leaking

Oxygen sensor fault

PCV valve fault.

Solutions & Repair Guide

Audi 2.0T/1.8T specific: Focus on checking if the high-pressure fuel pump shows signs of fuel leakage; Check fuel injector sealing; Check the PCV system.

Disclaimer: The information above is for reference only and does not constitute professional repair advice. Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.