Volkswagen Passat 1995 Official Factory Repair Manual page 1821

VAG 1551 Scan Tool (ST), connecting and selecting 'Engine Electronics' address word 01
Display field: Possible malfunction cause
6 + 7
Less than
112
More than
144
Display field: Possible malfunction cause
8
Less than 96
More than
160
128
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07....
Unmetered air after throttle
valve
Increased engine load
Engine too rich, O2S control
weakens mixture
O2S control at limit
Lots of fuel from EVAP
canister
Fuel pressure regulator
faulty/hose fallen off
Engine too lean, O2S control
enriches mixture
Unmetered air (outside air)
Fuel injectors faulty
O2S control at limit
Shortage of fuel
O2S control blocked
Malfunction elimination
- Check intake air system for leaks (outside air)
Page 24-123
- Switch off electrical consumer
Malfunction elimination
- Check HO2S and O2S control (before three
way catalytic converter)
- Check fuel pressure regulator
- Check HO2S and O2S control (before three
way catalytic converter)
- Check intake air system for leaks (outside air)
Page 24-123
- Check fuel injectors
- Check amount of fuel in tank
- Check HO2S and O2S control (before three
way catalytic converter)
Page 76 of 77
Page 24-25
Page 24-120
Page 24-25
Page 24-115
Page 24-25
12/6/2004
01-82