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Home >> Jaguar >> 1994 >> XJS 2D Convertible, 4.0 7, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Fuel System >> Fuel Pressure >> Fuel Pressure Release (4.0L)

Fuel Pressure Release (4.0L)

  1. On XJS, open trunk. Locate and disconnect fuel pump relay in right front corner of trunk. Relay is front-most relay (Silver relay with Yellow connector).
  2. On XJ6, open hood. Remove heated oxygen sensor/fuel pump relay from relay block. See Figure . On all models, start engine and let idle until engine stalls. Turn ignition off. Install heated oxygen sensor/fuel pump relay.
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