1998 OPEL FRONTERA Workshop Manual

Page 2025 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–132
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P1404 (Flash DTC 31) 
EGR VSV Circuit
060RW135
Circuit Description
The  Engine  control  module  (ECM)  monitors  the

Page 2026 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–133 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
DTC P1404 – EGR VSV Circuit
StepNo Ye s Va l u e ( s ) Action
3Check the VSV circuit.
Was the VSV circuit open or darmage?
—Go to Step 4Go to S

Page 2027 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–134
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0405 (Flash DTC 26) 
EGR Pressure Sensor Low Voltage
060RW134
Action Taken When the DTC Sets
The ECM will illuminate

Page 2028 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–135 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
DTC P0405 – EGR Pressure Sensor Low Voltage
StepNo Ye s Va l u e ( s ) Action
31. Turn off the ignition switch.
2. Remove the sensor connector co

Page 2029 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–136
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P1405 (Flash DTC 37) 
EGR EVRV Circuit Open/Short
060RW135
Circuit Description
EGR  EVRV  Circuit  has  a  common  po

Page 2030 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–137 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
DTC P1405 – EGR EVRV Circuit Open/Short
StepActionVa l u e ( s )Ye sNo
1Was the “On-Board Diagnostic (OBD) System Check”
performed?
—Go to

Page 2031 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–138
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0406 (Flash DTC 26) 
 EGR Pressure Sensor High Voltage
 060RW134
Action Taken When the DTC Sets
The ECM will illumin

Page 2032 of 6000

OPEL FRONTERA 1998  Workshop Manual 6E–139 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
DTC P0406 – EGR Pressure Sensor High Voltage
StepNo Ye s Va l u e ( s ) Action
4Is the EGR pressure sensor voltage value displayed on
the Tech 2