Adjustment of EGR Throttle Position Sensor for 300Tdi Discovery
Tdi
1
ADJUSTMENT
THROTTLE CABLE
Adjust
1. Loosen throttle cable adjustment ferrule.
2. Hold throttle lever in fully closed position.
3. Adjust outer cable, by rotating ferrule, to give
1.57 mm (0.062 in) of free play in the inner
cable.
4. Check that throttle opens fully when the throttle
is depressed.
EGR THROTTLE POSITION SENSOR
Check
1. Run engine until normal operating temperature is
reached.
2. Switch off engine and disconnect sensor
multiplug.
3. Connect an Ohmmeter across pins 1 and 3 of
multiplug. Ohmmeter should read between 1K
and 1.05K ohms.
4. Connect an Ohmmeter across pins 1 and 2 of
multiplug. Ohmmeter should read between 850
and 900 ohms.
5. If the readings are correct, EGR throttle position
sensor is Ok - reconnect multiplug.
6. Loosen 2 Torx screws securing sensor.
7. Rotate sensor to achieve correct Ohmmeter
readings, then tighten Torx screws.
8. Re-check Ohmmeter readings, then reconnect
multiplug.
