Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

1997 Acura Integra GS-R, 4D SedanFACTORY OEM SERVICE PROCEDURE

PGM-FI Main Relay

NOTE: If engine starts and continues to operate, PGM-FI main relay is okay.

Remove PGM-FI relay, located under left side of instrument panel. Connect battery voltage to relay terminal No. 2. Connect terminal No. 1 to ground. See Fig 1 .
Test for continuity between relay terminals No. 4 and No. 5. If continuity exists, go to next step. If continuity does not exist, replace relay.
Connect battery voltage to relay terminal No. 5. Connect terminal No. 3 to ground. Test for continuity between relay terminals No. 6 and No. 7. If continuity exists, go to next step. If continuity does not exist, replace relay.
Connect battery voltage to terminal No. 6. Connect terminal No. 1 to ground. Test for continuity between relay terminals No. 4 and No. 5. If continuity exists, relay is okay. If continuity does not exist, replace relay.

Fig 1: PGM-FI Relay Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty

Get a Free Quote

No obligation. See pricing before you book.