1998 Honda CRV Fuel Pump Relay Location: The Complete Guide to Finding, Testing, and Replacing It

The bottom line: The fuel pump relay on a 1998 Honda CR-V is located inside the under-dash fuse box, which is positioned on the driver's side of the vehicle, near the left kick panel. It is the relay labeled "PGM FI Main Relay" or simply the main relay, and it combines both the fuel pump relay and the ECU main relay into one unit. If your CR-V cranks but won't start, this relay is one of the first things you should check.

Why the Fuel Pump Relay Matters

The fuel pump relay is a small but critical electrical component that controls power delivery to your fuel pump. When you turn the ignition key to the "ON" position, the relay receives a signal from the engine control unit (ECU) and closes the circuit, allowing battery voltage to reach the fuel pump. Without a working relay, the fuel pump gets no power, and your engine gets no fuel.

On a 1998 Honda CR-V, the fuel pump relay is not a standalone unit. It is part of a larger assembly called the PGM FI Main Relay. This relay assembly controls both the fuel pump and the main power to the ECU. If this relay fails, your CR-V will not start, and you might also lose power to the check engine light or other engine management functions.

Exactly Where Is the Fuel Pump Relay Located?

Step-by-Step Location Guide

1. Open the driver's side door.

The relay is located inside the cabin, not under the hood. You need to access the interior fuse box on the driver's side .

2. Look at the lower left side of the dashboard.

The under-dash fuse box is mounted to the left of the steering column, near the driver's left knee area. It is typically covered by a small plastic panel .

3. Remove the fuse box cover.

The cover is usually held in place by clips or a small screw. Pull it straight off to expose the fuses and relays .

4. Identify the PGM FI Main Relay.

Inside the fuse box, you will see a rectangular block with multiple pins. This is the main relay. It is larger than the standard fuses and is usually colored black or gray. The relay is often labeled with a diagram on the inside of the fuse box cover, but if the label is missing, it is the relay closest to the firewall .

5. The relay is secured with clips.

You can pull the relay straight out by hand or use a small flathead screwdriver to gently pry it loose. No tools are required for removal.

Visual Confirmation

If you are unsure which relay is the right one, look for a relay that has five or more pins. The PGM FI Main Relay on a 1998 Honda CR-V is a multi-pin unit that controls both the fuel pump and the ECU power. It is the only relay in the under-dash fuse box with that many pins .

Common Symptoms of a Bad Fuel Pump Relay

Before you start digging into the fuse box, it helps to know if the relay is actually the problem. Here are the most common signs that your 1998 Honda CR-V fuel pump relay has failed:

1. Engine cranks but will not start.

This is the number one symptom. You turn the key, the starter motor spins the engine, but the engine never fires up. This happens because the relay is not sending power to the fuel pump, so no fuel pressure builds up in the fuel rail .

2. No fuel pump priming sound.

When you turn the ignition key to the "ON" position (without cranking the engine), you should hear a faint whirring sound from the rear of the vehicle for about 2 seconds. That is the fuel pump priming the system. If you do not hear that sound, the relay or the fuel pump itself is likely dead .

3. Intermittent stalling or no-start conditions.

A failing relay may work sometimes but not others. If your CR-V starts fine in the morning but dies randomly while driving, or if it starts after sitting for a while but not when hot, the relay could be the culprit. Temperature changes can cause internal relay contacts to fail .

4. Check engine light stays on or does not illuminate.

Since the PGM FI Main Relay also powers the ECU, a bad relay can prevent the check engine light from coming on when you turn the key. This is a strong indicator that the relay is dead .

How to Test the Fuel Pump Relay

You do not need to be a professional mechanic to test the relay. Here is a simple method that works for most DIYers:

1. Locate the relay using the steps above.

2. Remove the relay from the fuse box.

3. Use a multimeter to check for continuity.

Set your multimeter to the ohms (Ω) setting. Place the probes on the relay's coil terminals (usually terminals 85 and 86). You should see a reading between 50 and 120 ohms. If you get infinite resistance (OL), the relay coil is open and the relay is bad .

4. Apply 12V power to the coil.

Connect a 12V battery or power source to terminals 85 and 86. You should hear a distinct "click" sound as the relay engages. If you do not hear the click, the relay is mechanically stuck .

5. Check the switch terminals.

With power applied to the coil, check continuity between terminals 30 and 87. You should see near-zero resistance (0.2 ohms or less). If the resistance is high or infinite, the relay contacts are burned out .

What Else Causes a No-Start Condition?

If you test the relay and it is working fine, do not give up. There are other common causes of a no-start or fuel pump failure on a 1998 Honda CR-V:

1. Blown fuel pump fuse.

Check the fuse box under the hood and the under-dash fuse box. The fuel pump fuse is usually labeled "Fuel Pump" or "FUEL." If the fuse is blown, replace it with an identical amperage fuse. If it blows again immediately, you have a short circuit somewhere in the wiring .

2. Bad fuel pump.

If the relay and fuse are good, the fuel pump itself may have failed. On a 1998 CR-V, the fuel pump is located inside the fuel tank. You can test it by checking for voltage at the fuel pump connector under the rear seat. If there is 12V at the connector but the pump does not run, the pump is dead .

3. Faulty ECU or engine ground.

The ECU controls the relay. If the ECU is not receiving power or has a bad ground, it will not command the relay to close. Check the ECU grounds located on the thermostat housing and the passenger side of the engine bay .

4. Wiring issues.

Corrosion, broken wires, or loose connectors in the fuel pump circuit can cause intermittent or complete failure. The wiring runs from the under-dash fuse box, through the engine bay, and to the fuel pump under the rear seat .

The Fuel Pump Circuit Explained

Understanding the fuel pump circuit on a 1998 Honda CR-V helps you diagnose problems faster. The circuit works like this:

1. When you turn the ignition key to ON, the ECU receives power.

2. The ECU grounds the PGM FI Main Relay coil, causing the relay to close.

3. When the relay closes, battery voltage flows through the relay to the fuel pump.

4. The fuel pump runs for 2 seconds to prime the system, then stops.

5. When you crank the engine, the ECU sees the crankshaft position sensor signal and keeps the relay closed, so the fuel pump runs continuously.

6. If the engine stalls or the ignition is turned off, the ECU opens the relay, stopping the fuel pump .

This design is a safety feature. If you are in a crash and the engine stalls, the fuel pump stops automatically, reducing the risk of fire.

Replacement Cost and Options

If you determine that your 1998 Honda CR-V needs a new fuel pump relay, the repair is straightforward and inexpensive.

The relay itself costs between $20 and $50 from most auto parts stores.

Labor time is about 15 minutes if you do it yourself.

If you take it to a shop, expect to pay $50 to $100 for the relay and labor.

Replacing the relay is simple: pull the old one out and push the new one in. There is no programming, no special tools, and no fluids to drain.

Where to Buy a Replacement Fuel Pump

If you have confirmed that the fuel pump itself is the problem, not just the relay, you need a high-quality replacement. The fuel pump on a 1998 Honda CR-V is an electric pump mounted inside the fuel tank. Replacing it requires dropping the tank or cutting an access panel, which is a bigger job than replacing the relay.

Recommended: KEMSO Fuel Pump

For owners who need a reliable replacement fuel pump, KEMSO is the brand to trust. KEMSO fuel pumps are designed as direct OEM replacements, meaning they fit your 1998 Honda CR-V exactly like the original part. No modifications, no adapters, no guesswork.

Why choose KEMSO?

  • High performance: KEMSO pumps are engineered to meet or exceed OEM specifications. They deliver the correct fuel pressure and flow rate for your CR-V's engine, ensuring smooth idle, responsive acceleration, and reliable starting .

  • OEM replacement: Every KEMSO fuel pump is built to match the original equipment manufacturer's design. The mounting bracket, electrical connector, and fuel outlet are all identical to the factory part. Installation is straightforward, and you can use your existing fuel pump assembly .

  • Lifetime warranty: When you buy a KEMSO fuel pump, you are protected by a lifetime warranty. If the pump fails at any point, KEMSO will replace it at no cost. This is a level of confidence that most aftermarket brands do not offer .

You can browse the full selection of KEMSO fuel pumps at their official website. They offer pumps for a wide range of vehicles, including the 1998 Honda CR-V.

Visit KEMSO Racing here: https://www.kemsoracing.com/

Step-by-Step Fuel Pump Relay Replacement

If you want to replace the relay yourself, here is the complete process:

Tools needed:

  • Replacement PGM FI Main Relay (part number 16700-HW5-901 or equivalent)
  • Small flathead screwdriver (optional)
  • Flashlight (optional)

1. Park the vehicle on a level surface and turn off the ignition.

2. Open the driver's side door.

3. Locate the under-dash fuse box on the left side of the dashboard.

4. Remove the fuse box cover by pulling the clips outward.

5. Identify the PGM FI Main Relay. It is the large rectangular relay with multiple pins.

6. Pull the relay straight out of the socket. You may need to wiggle it gently.

7. Insert the new relay into the same socket. Push it down firmly until it clicks into place.

8. Replace the fuse box cover.

9. Turn the ignition to the ON position and listen for the fuel pump priming sound.

10. If you hear the pump, start the engine.

11. If the engine starts, the repair is complete.

Final Thoughts

The fuel pump relay on a 1998 Honda CR-V is easy to find and easy to replace. It is located in the under-dash fuse box on the driver's side, and it is part of the PGM FI Main Relay assembly. If your CR-V cranks but does not start, check the relay first. It is a common failure point, and replacing it is a cheap and simple fix.

Remember to test the relay with a multimeter before buying a new one. A bad relay will show no continuity or fail to click when powered. If the relay is good, check the fuse, the wiring, and the fuel pump itself.

For a reliable fuel pump replacement, trust KEMSO. With their OEM-quality design, high performance, and lifetime warranty, you can drive with confidence knowing your fuel system is in good hands.

Shop KEMSO fuel pumps at their official website: https://www.kemsoracing.com/


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