Table 6, Digital Diesel Electronics DDE 2.1 F6: ADJUSTMENT
IDLE SPEED
| Test Conditions | Nominal Value |
Affected terminals: -
Possible trouble codes: -
Engine running at idle speed, operating temperature
Vehicle stationary
Air conditioning OFF
Press key F6 in the system main menu, select the desired test using the arrow keys and confirm with YES. Follow the instructions in the TECH 1 display.
Note:
In this mode, it is possible to increase/ decrease the engine idle speed in the range from 614 to 842 rpm (AT) or 614 to 865 rpm (MT) using the arrow keys.
In this check mode, TECH 1 specifies the previously adjusted engine speed to the control unit and the control unit regulates the engine to this speed.
This mode should be used if the engine runs irregularly, jerks or runs too high at idle speed.
Trouble-shooting
| Nominal Value | Cause of Fault: |
(If nominal value is not attained)
| Trouble-shooting see section 5.2 "Digital Diesel Electronics DDE 2.1 F0: DATA LIST" test step no. 25 to 27 ENGINE SPEED |