02
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SELECT
ADJUSTMN.
02
BLM RESET
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X 20 SE engine
only:
Engine running at idle speed
Engine throttle valve CLOSED
(accelerator pedal in idle
position)
Vehicle stationary
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.
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02
|
SELECT
ADJUSTMN.
02 BLM RESET
|
Note:
In this mode, it is possible to
reset the above mentioned engine learn parameters using the arrow keys, i. e.
to set them to 128 steps.
The learn parameters indicate
the short - term and long - term behaviour of the oxygen sensor
control circuit. If a fault occurs in this circuit, these values taper off
upwards or downwards.
If the fault in the oxygen
sensor control circuit is eliminated in the workshop, the learn parameters
return to the normal value of 128 steps. This process may however take
several minutes.
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02
|
SELECT
ADJUSTMN.
02 BLM RESET
|
Note:
For this reason, it is possible
to reset the parameters directly to the normal value of 128 steps using
this TECH 1 mode. The engine should then still be run for some time
to check that the oxygen sensor control circuit has been correctly repaired.
The reset is triggered by the ARROW UP key. ]n addition, the various
data list parameters can be displayed via the YES and NO keys. Key
F9 can be used to store data as in the snapshot mode.
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