1998 OPEL FRONTERA Workshop Manual

Page 4817 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–160
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0172 – Fuel Trim System Rich Bank 1
StepActionVa l u e ( s )Ye sNo
1Was the “On-Board Diagnostic (OBD) System Check”
performed?
—Go to Step 2
Go

Page 4818 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–161 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0172 – Fuel Trim System Rich Bank 1
StepNo Ye s Va l u e ( s ) Action
111. Disconnect the vacuum hose from the fuel pressure
regulator and inspect the

Page 4819 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–162
ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0174 Fuel Trim System Lean Bank 2
D06RW031
Circuit Description
To provide the best possible combination of driveability,
fuel

Page 4820 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–163 ENGINE DRIVEABILITY AND EMISSIONS
Ignition voltage is above 9.5 volts.
Fuel system is in “closed loop.”
Action Taken When the DTC Sets
The PCM will illuminate the malfunction indicator la

Page 4821 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–164
ENGINE DRIVEABILITY AND EMISSIONS
DTC P0174 – Fuel Trim System Lean Bank 2
StepActionVa l u e ( s )Ye sNo
1Was the “On-Board Diagnostic (OBD) System Check”
performed?
—Go to Step 2
Go

Page 4822 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–165 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0174 – Fuel Trim System Lean Bank 2
StepNo Ye s Va l u e ( s ) Action
101. Visually  and  physically  inspect  the  throttle  body,
intake manifold, E

Page 4823 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–166
ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0175 Fuel Trim System Rich Bank 2
D06RW031
Circuit Description
To provide the best possible combination of driveability,
fuel

Page 4824 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–167 ENGINE DRIVEABILITY AND EMISSIONS
Barometric pressure is greater than 72.5 kPa.
Mass air flow is between 2 g/second and 200 g/second.
Ignition voltage is above 9.5 volts.
Fuel system is in