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Home >> Volkswagen >> 1988 >> Fox Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH Cis-E >> Testing >> Electrical Components >> Altitude Sensor (Quantum & Quantum Syncro Only)

Altitude Sensor (Quantum & Quantum Syncro Only)

  1. Disconnect distributor high tension lead from distributor and connect to ground. Remove glove compartment and disconnect main connector from MCU. Disconnect connector terminal from potentiometer.
  2. Measure resistance between connector pins No. 14 and 18 of the main connector. Resistance should be 2100-2600 ohms.
  3. Measure resistance between connector pins No. 11 and 14. Resistance should be 200-3600 ohms.
  4. If resistance is not to specification check wiring continuity. If wires have continuity replace altitude sensor.