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Sensor OPERTATING Specifications

AIRFLOW SENSOR POTENTIOMETER RESISTANCE TEST

Application Conditions Ohms
Cabriolet, Fox, Golf GL & Jetta (1) Ignition On 500-1000
" (2) Move Sensor Flap Changing
Corrado 1.8L (3) Ignition On 500-1000
" (4) Move Sensor Flap Changing
GTI, Jetta GLI & Passat (5) Sensor At Rest 4500-5500
" (6) Sensor At Rest 3800-4200
(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.
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 (1) , Corrado (1) , Fox (2) 122 (50) 800-1000
" 176 (80) 250-350
" 212 (100) 100-200
Golf GL (1) , Jetta (2) , Passat (3) 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.
DIFFERENTIAL PRESSURE REGULATOR TEST

Application Between Terminals Ohms
1.8L No. 10 & 12 17.5-21.5
2.0L No. 4 & 5 15-20
2.8L Not Available Not Available
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) 4,500-6500
(1) Measure resistance between terminals No. 9 & 35.
INTAKE AIR TEMPERATURE SENSOR RESISTANCE TEST

Application Temperature - °F (°C) Ohms
Cabriolet, Corrado 1.8L 32 (0) 5000-6500
" 122 (50) 950-1000
" 212 (100) 150-250
Corrado 2.8L Not Available Not Available
Fox, Golf & Jetta (1) 32 (0) 5000-6500
" 122 (50) 950-1000
" 212 (100) 150-250
(1) On Cabriolet and Corrado 1.8L (Calif.), measure resistance between terminals No. 28 and 30. On all others, measure resistance between terminals No. 6 and 9.
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 1
" 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 0
" Reconnect Sensor Open Ckt
Calif. (5) Disconnect & Ground Harness Wire 1
" 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.
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 and 19.
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