Procedure To Check and Reset Adaptions

^ Run engine at normal operating temperature.

^ Load disc PDU 1055 into the PDU at the base station.

(PDU Disc 1055 has the capability of reading the long term fuelling trim adaptions.This facility will confirm whether AMFR and/or FMFR are running at mixture that is too lean or too rich. These values are found in the PDU datalogger facility.)

^ Select DIAGNOSTICS from the main menu.

^ Enter VEHICLE DETAILS.

^ Select TO0LBOX from the DIAGNOSTICS MAIN MENU.

^ Select POWERTRAIN from the TO0LBOX MAIN MENU screen. The information screen will request that the PDU is connected to the vehicle.

^ Select DATALOGGER from the PDU tools function.





^ In DATALOGGER clear the default parameters and then select "AMFR", "FMFR", "CLV" (Calculated engine Load Value), and RPM (Illustration 1).

^ Select bar chart form, this will enable viewing of the adaption values, and act as an accurate monitor of the RPM.

^ Note and record the AMFR adaption and FMFR adaption displayed values.

^ Return to the PDU base station and load RESET ADAPTIVE VALUES from the TO0LBOX menu screen.

^ Connect the PDU to the vehicle and reset the adaptive values.

^ Return to the PDU base station and reload DATALOGGER from the POWERTRAIN option of the toolbox menu screen.

Continue with the procedure in "Drive Cycle."