Start adaptations

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Start and run the engine in the incorrect adaptation range until the value is stable.

Check that the adaptation value is between 0.85 - 1.15.

Certain conditions must be met for adaptation to start 

• Engine speed≥600 RPM
• Engine coolant temperature (ECT) between 80-110°C
• Present air flow (according to table).

  See the table below for the mass air flow parameters for an active adaptation

• Fuel trim active = executed
• Canister purge (CP) valve not active = 0 μs.

HINT: If fuel vaporization is high, the canister purge (CP) valve is active for long periods. In this case, it may be necessary to disconnect the hose between the canister purge (CP) valve and the EVAP canister. 

HINT: Parameters above level 2 can be difficult to achieve in the workshop with no load on the engine. 

Fig 2: Identifying VCT2000 Diagnostic Tool

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the adaptation value between 0.85-1.15? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Information