Volkswagen Passat 1995 Official Factory Repair Manual page 1568

Diagnostic Trouble Code (DTC) tables:
SAE- DTC text
DTC
P0172 System Too
Rich, Bank 1
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
- Fuel pressure regulator and residual pressure, checking
Page 24-84
- Check fuel injectors (Cylinder 1 Fuel Injector -N30- to
Cylinder 4 Fuel Injector -N33-)
- Check Oxygen Sensor (O2S) and oxygen sensor control
before Three Way Catalytic Converter (TWC)
- Check Oxygen Sensor (O2S) and oxygen sensor control
behind Three Way Catalytic Converter (TWC)
- Check Evaporative Emission (EVAP) Canister Purge
Regulator Valve -N80-
Corrective action
Page 24-65
Page 20-34
Page 6 of 41
ST-61
Page 24-87
Page 24-92
6/12/2004