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Home >> Volkswagen >> 1989 >> Jetta L4-1781cc 1.8L DOHC (PL) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Specifications >> Mechanical Specifications
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Mechanical Specifications

Air/Fuel Ratio
Adjustment specification [1] 0.7%
Checking limits [2] 0.3 - 1.2%


Ignition Timing
Base 6° +/- 1° 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 connected.