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Home >> Jeep >> 1996 >> Cherokee Classic, Part Time, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - 2.5L >> Fuel System >> Fuel Pressure Release >> Fuel Rail Without Fuel Pressure Test Port

Fuel Rail Without Fuel Pressure Test Port

  1. Remove Auto Shutdown (ASD) relay from Power Distribution Center (PDC), located near windshield washer reservoir. Refer to label on PDC cover for relay location.
  2. Start engine and allow to idle until engine stalls. Attempt to start engine several times. Once engine will not restart, turn ignition off.
  3. Disconnect electrical connector from any fuel injector. Connect a jumper wire between one fuel injector terminal and positive battery terminal. Connect another jumper wire to remaining fuel injector terminal.
    CAUTION: DO NOT  apply battery voltage to fuel injector for more than 4 seconds or fuel injector may be damaged.
  4. Momentarily touch remaining end of jumper wire to negative battery terminal for no more than 4 seconds. Cover fuel line at fuel rail with shop towel before disconnecting. Disconnect fuel line.
  5. Disconnect jumper wires. Reinstall electrical connector on fuel injector. Reinstall ASD relay. Diagnostic Trouble Codes (DTCs) may be stored in Powertrain Control Module (PCM) when ASD relay is removed. To clear DTCs from PCM, see TESTS W/CODES - 2.5L 4-CYL article.
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