Volkswagen Workshop Service and Repair Manuals

Idle Stabilizer Valve

Between terminals on valve ...........................................................................................................................................................................  4 - 12 ohms

Intake Air Temperature Sensor (EGR)

Between sensor terminals .........................................................................................................................  Refer to TEMPERATURE CHART - EGR

Knock Sensors

Between terminals 1 and 2 ..........................................................................................................................................................................  infinite ohms

Oxygen Sensor

Preheat Resistor Cold (less than 68 deg. F./20 deg. C.) ........................................................................................................................................  3 ohms
Preheat Resistor Hot (greater than 662 deg. F./350 deg. C.) ..............................................................................................................................  13 ohms
Output Voltage (with CO adjustment within specs) ...................................................................................................................................  0.3 - 0.7 volts

Tune-up Specifications

Air/Fuel Ratio ..........................................................................................................................................................................................................  0.7%
Air/Fuel Ratio-Limits [1]..................................................................................................................................................................................  0.3 - 1.2%
Timing ....................................................................................................................................................................................................  6° +/- 1° BTDC
Idle RPM [2] .....................................................................................................................................................................................................  700 - 900

[1] Check CO with the oxygen sensor connected.
[2] Not adjustable, with A/C off.