P1166 OBD Trouble Code

1 result found

P1166 - Volkswagen
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Long term fuel trim above rich limit

Location Bank 1 Sensor 2
Cause

Fuel pressure/pump, injectors, EVAP canister purge valve, EGR system, HO2S, intake/exhaust system

Try also: https://www.obd-codes.com/p1166