Sensor Operating Specifications

AIRFLOW SENSOR POTENTIOMETER RESISTANCE TEST

Application & Conditions

Ohms

Cabriolet & Fox

Ignition On ⁽¹⁾

500-1000

Move Sensor Flap ⁽²⁾

Changing

Corrado

Ignition On ⁽³⁾

500-1000

Move Sensor Flap ⁽⁴⁾

Changing

Golf GL & Jetta

Ignition On ⁽¹⁾

500-1000

Move Sensor Flap ⁽²⁾

Changing

GTI, Jetta GLI & Passat

Sensor At Rest ⁽⁵⁾

4500-5500

Sensor At Rest ⁽⁶⁾

3800-4200

Vanagon

Sensor At Rest ⁽⁷⁾

Less Than 1000

Sensor At Rest ⁽⁸⁾

More Than 4000

⁽¹⁾	Measure resistance between terminals No. 6 and 17.

⁽²⁾	Measure resistance between terminals No. 17 and 21.

⁽³⁾	Measure resistance between terminals No. 15 and 28.

⁽⁴⁾	Measure resistance between terminals No. 13 and 15.

⁽⁵⁾	Measure resistance between terminals No. 23 and 26.

⁽⁶⁾	Measure resistance between terminals No. 26 and 35.

⁽⁷⁾	Measure resistance between terminals No. 14 and 17.

⁽⁸⁾	Measure resistance between terminals No. 17 and 18.

COLD START VALVE TEST

Application	Between Terminals	Ohms
2.0L	No. 14 & 16	8-13

COOLANT TEMPERATURE SENSOR RESISTANCE TEST

Application

Temperature °F (°C)

Ohms

Cabriolet, Corrado & Golf GL ⁽¹⁾

122 (50)

800-1000

176 (80)

250-350

212 (100)

100-200

Fox & Jetta ⁽²⁾

122 (50)

800-1000

176 (80)

250-350

212 (100)

100-200

Passat ⁽³⁾

122 (50)

800-1000

176 (80)

250-350

212 (100)

100-200

Vanagon ⁽¹⁾

122 (50)

800-1000

176 (80)

250-350

212 (100)

100-200

⁽¹⁾	Measure resistance between terminals No. 6 and 10.

⁽²⁾	Measure resistance between terminals No. 11 and 28.

⁽³⁾	Measure resistance between terminals No. 3 and 35.

CYLINDER HEAD TEMP. SENSOR RESISTANCE TEST (VANAGON) ⁽¹⁾

Temperature °F (°C)

Ohms

68 (20)

2100-2900

176 (80)

270-390

⁽¹⁾	Measure resistance between terminal No. 13 and ground.

DIFFERENTIAL PRESSURE REGULATOR TEST

Application	Between Terminals	Ohms
1.8L	No. 10 & 12	17.5-21.5
2.0L	No. 4 & 5	15-20

EGR TEMP. SENSOR RESISTANCE TEST (2.0L) ⁽¹⁾

Temperature °F (°C)

Ohms

122 (50)

500,000-600,000

257 (125)

35,000-40,000

392 (200)

4500-6500

⁽¹⁾	Measure resistance between terminals No. 9 & 35.

INTAKE AIR TEMPERATURE SENSOR RESISTANCE TEST

Application

Temperature °F (°C)

Ohms

Cabriolet & Corrado ⁽¹⁾

32 (0)

5000-6500

122 (50)

950-1000

212 (100)

150-250

Fox, Golf & Jetta ⁽¹⁾

32 (0)

5000-6500

122 (50)

950-1000

212 (100)

150-250

Vanagon ⁽²⁾

68 (20)

2300-2700

⁽¹⁾	On Cabriolet and Corrado (California), measure resistance between terminals No. 28 and 30. On all others, measure resistance between terminals No. 6 and 9.

⁽²⁾	Measure resistance between terminals No. 6 and 14.

OIL TEMP. SENSOR RESISTANCE TEST (VANAGON) ⁽¹⁾

Temperature °F (°C)

Ohms

14 (10)

7000-11,600

68 (20)

2100-3100

176 (80)

270-390

⁽¹⁾	Measure resistance between temp. sensor & ground.

OXYGEN SENSOR RESISTANCE TEST

Application

Condition

Ohms

Cabriolet, Fox & Golf GL

Federal ⁽¹⁾

Disconnect & Ground Harness Wire

0.5

Reconnect Sensor

Open Ckt

Calif. ⁽²⁾

Disconnect & Ground Harness Wire

Reconnect Sensor

Open Ckt

Corrado ⁽³⁾

Disconnect Sensor

1.5

Reconnect Sensor

Open Ckt

GTI, Jetta GLI & Passat

Federal ⁽⁴⁾

Disconnect Sensor & Ground GRN Wire

Reconnect Sensor

Open Ckt

Calif. ⁽⁵⁾

Disconnect & Ground Harness Wire

Reconnect Sensor

Open Ckt

Vanagon ⁽⁶⁾

Disconnect & Ground Harness Wire

Reconnect Sensor

Open Ckt

⁽¹⁾	Measure resistance between terminals No. 2 and 13.

⁽²⁾	Measure resistance between terminals No. 2 and 8.

⁽³⁾	Measure resistance between terminals No. 1 and 2.

⁽⁴⁾	Measure resistance between terminals No. 7 and 35.

⁽⁵⁾	Measure resistance between terminals No. 2 and 8.

⁽⁶⁾	Measure resistance between terminals No. 5 and 7.

THROTTLE POSITION SENSOR RESISTANCE TEST

Application

Position

Ohms

Except Corrado ⁽¹⁾

Disconnect Potentiometer

1.5

Corrado ⁽²⁾

Throttle Closed

0.5

Off Full Throttle

Open Circuit

Full Throttle

0.5

⁽¹⁾	Measure resistance between terminals No. 1 and 34.

⁽²⁾	Measure resistance between terminals No. 6 and 11.

VACUUM SENSOR RESISTANCE TEST ⁽¹⁾

Condition

Ohms

Move Sensor Plate

Changing

⁽¹⁾	Measure resistance between terminals No. 15 & 19.