Volkswagen Workshop Service and Repair Manuals

Knock Sensor: Mechanical Specifications

Air/Fuel Ratio

Adjustment specification [1] ....................................................................................................................................................................................  0.7%
Checking limits [2] ..........................................................................................................................................................................................  0.3 - 1.2%

Ignition Timing

Base [3] ...................................................................................................................................................................................................  6° +/- 1° BTDC
Advance [4] ..........................................................................................................................................................................................  30° +/- 3° BTDC

Idle RPM

A/C off .............................................................................................................................................................................................................  850 +/- 50

Tightening Torque

Knock Sensor .........................................................................................................................................................................  15 - 18 ft. lb. (20 - 24 Nm)
Oxygen Sensor ....................................................................................................................................................................................  37 ft. lb.  (50 Nm)

[1] Refer to ADJUSTMENT PROCEDURES
[2] Check the Air/Fuel Ratio with the oxygen sensor 
[3] AT 2300 RPM, and coolant temperature sensor disconnected.
[4] Normal operating temperature, with coolant temp. sensor connected, at 2300 RPM. Add initial timing.