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Home >> Volkswagen >> 1993 >> Cabriolet L4-1781cc 1.8L SOHC >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Powertrain Management >> Computers and Control Systems >> System Specifications
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System 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 800 +/- 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 connected.
[3] AT 2300 RPM, and coolant temperature sensor disconnected.
[4] Normal operating temperature, with coolant temp. sensor connected, at 2300 RPM. Add initial timing.