Volvo Symptom D12D US02 Service Manual page 79

Group 20
Step 2: Visual Inspection (System Checks)
Action:
None required.
"Step 3: VCADS Pro Tests" page 75
Step 3: VCADS Pro Tests
Action:
Check that individual injectors are functioning correctly.
Check cylinder balance.
Check cylinder compression.
Check EGR system.
Check sensor values.
Check fuel supply pressure at low and high engine speeds.
Check start and warm-hold function.
Check the intake and exhaust system.
"Step 4: Component and Function Checks" page 76
T2020217
C2002640
D
Refer to:
"Engine Runs Unevenly at Idle Speed" page 73
Refer to:
Injector Cut-Out, manual
Cylinder balancing, Check
Cylinder Compression, Test
EGR Function, test
"Sensor Values Check, (Engine Running)"
Fuel Supply Pressure, Check
Warm-Hold Function, Test
Intake and Exhaust System, Check
"Engine Runs Unevenly at Idle Speed" page 73
75