volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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MIL ON - Poor Idle/Stalls, Loss of Power, Exhaust Smoke|Page 2548 > < MIL ON - Poor Idle/Stalls, Loss of Power, Exhaust Smoke|Page 2546

Passat L4-1984cc 2.0L DOHC (9A) (1990)

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Coolant Temperature Sensor/Switch (For Computer): Specifications

TEMPERATURE CHART - CTS

Intake Air Temperature Chart (EGR)

TEMPERATURE CHART - EGR

Air Flow Sensor Plate Potentiometer

Between terminals 1 and 2 ...........................................................................................................................................................................  > 4000 ohms
Between terminals 2 and 3 ...........................................................................................................................................................................  < 1000 ohms
Between terminals 2 and 3 (raise sensor plate) ...........................................................................................................................  > 4000 ohms uniformly

Coolant Temperature Sensor

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

CIS-E Control Unit

Power supply to terminal 19 ...................................................................................................................................................................  Battery Voltage
Power supply to terminal 14 ...................................................................................................................................................................  Battery Voltage
Engine speed limit .............................................................................................................................................................................  approx. 6800 RPM

Cold Start Valve

Between valve terminals ........................................................................................................................................................................  approx. 10 ohms

Differential Pressure Regulator

Between terminals 1 and 2 ...........................................................................................................................................................................  15 - 25 ohms

MIL ON - Poor Idle/Stalls, Loss of Power, Exhaust Smoke|Page 2548 > < MIL ON - Poor Idle/Stalls, Loss of Power, Exhaust Smoke|Page 2546