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13.8
Removing/installing and checking/
adjusting throttle position sensor
Removing and installing throttle posi-
tion sensor
•
Unscrew the throttle position sensor and pull it
off the throttle shaft.
•
Loosen wire keeper (1) and pull off multi-pin plug
(2).
•
Install in the reverse order of work.
e Caution:
If the throttle position sensor has been removed, the
basic settings must be checked and corrected if
necessary after installing it again.
L Note:
See the booklet “BMW Diagnosis, Motronic MA 2.1
with oxygen sensing” or “without oxygen sensing”,
or the booklet “BMW Diagnosis MA 2.2”.
Checking trottle position sensor
•
Connect the diagnostic cable.
•
Press the left switch on the switch cabinet up to
the detent position.
•
Switch on the ignition.
•
[MA 2.1] If the temperature warning light comes
on, the throttle position sensor is correctly adjust-
ed.
•
[MA 2.1] If the temperature warning light does
not come on, re-adjustment is needed.
•
[MA 2.2] If small zeroes are visible on the tester
display, the throttle position sensor is correctly
adjusted.
•
[MA 2.2] If no zeroes are visible, check the throt-
tle end stops and re-adjust.
Adjusting throttle position sensor
L Note:
Only adjust if the throttle position sensor was re-
moved or renewed.
•
Loosen the fastening for the sensor at the throttle
rail.
•
Turn the sensor to the left or right until [MA 2.1]
the temperature warning light comes on or
[MA 2.2] small zeroes appear on the display.
•
Tighten the sensor in this position.
•
Pull off the diagnostic cable.
LT130060
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