1993 Acura Integra GS-RFACTORY OEM SERVICE PROCEDURE

Fuel Pump Relay

  1. Remove main relay, located near underdash fuse block. Check for continuity between relay terminals No. 5 and 7. See Fig 1 . If continuity exists, replace relay. If continuity does not exist, go to step 2.
  2. Check for continuity between relay terminals No. 1 and 3. If continuity exists, replace relay. If continuity does not exist, go to step 3.
  3. Using a fused jumper wire, connect positive battery terminal to relay terminal No. 4. Connect relay terminal No. 8 to ground. Check for continuity between relay terminals No. 5 and 7. If continuity exists, go to step 4. If continuity does not exist, replace relay.
  4. Connect positive battery terminal to relay terminal No. 5. Ground terminal No. 2. Check for continuity between relay terminals No. 1 and 3. If continuity exists, go to step 5. If continuity does not exist, replace relay.
  5. Connect battery positive terminal to relay terminal No. 3. Connect battery negative terminal to relay terminal No. 8. Check for continuity between relay terminals No. 5 and 7. If continuity exists, relay is okay. If continuity does not exist, replace relay.
    Fig 1: Identifying Main Relay Terminals
    G93I78368Courtesy of AMERICAN HONDA MOTOR CO., INC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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