Checking gap

Checking gap

Be sure to take the measurement at right angles to the phonic wheel and at the point of a tooth, not a depression.

Because the rpm and TDC sensor is secured directly to the engine block, gap and angular position do not require adjustment. If a fault is suspected, the gap can be checked as follows:

• remove the rpm and TDC sensor;
• check that the distance between the sensor contact surface and phonic wheel tooth corresponds to the sum of sensor probe length (34.5 mm) and gap (0.8 - 1.5 mm).

KNOCK SENSOR (0.261.231.007)

The knock sensor is located on the rear of then engine block, between cylinders 2 and 3.

Refer to the fuel system section for the 1998 20V engine for a more detailed description of operation.

Recovery

Ignition advance delay: 8° - 9° according to engine speed.

Knock control deactivation

If the fault relates to the sensor interface circuit, the ECU assumes an ignition advance delay of 10°.

Wiring connector

The numbers in boxes indicate the corresponding control unit pins.