Motronic M 1.5.4 System- Modification F6:ADJUSTMENTS
CO ADJUSTMENT
| Conditions for Checking | Nominal Value |
20 SE, 22 XE engine only :
Affected Terminals:
Possible Trouble Codes:
Engine running at idle speed, operating temperature (coolant temperature greater than 70 °C/158 °F)
Switch off all consumers
Fasten exhaust emissions tester to vehicle exhaust
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 diagnostic tester display.
Note:
The CO value can be changed with the arrow keys:
· Arrow key up: CO adjustment increases in increments from 128, 129, 130 to 188 steps
· Arrow key down: CO adjustment decreases in increments from 128, 127, 126, to 68 steps
Confirm the set CO value with ENTER .
In the adjustment mode, the CO content should be within the limits on the right:
Set to a value that is as close as possible to the lower limit.
Once adjustment is complete, check the measurement at idle speed.
| Ensure that the CO values are below the value on the right. | Exhaust emissions tester |
0,5 to 1,5 % CO
| 0,5 % CO |