P1166 AUDI – Bank 1 Long Term Fuel Trim Range 2 Rich Upper Limits Exceeded

P1166 AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1166 AUDI Possible Causes

High fuel pressure-Blocked return system or failed pressure regulator,Faulty fuel injector,EVAP purge solenoid stuck open,Cylinder misfire,Correct other codes first

P1166 AUDI Description

Bank 1 Long Term Fuel Trim Range 2 Rich Upper Limits Exceeded is the generic description for the P1166 Audi code, but the manufacturer may have a different description. Currently we have no further information abouth the P1166 Audi OBDII code.