2001 Infiniti I30 Fuel Pump Relay Location: The Complete Guide to Finding and Fixing It

The bottom line: On a 2001 Infiniti I30, the fuel pump relay is located behind the left kick panel, inside the passenger compartment, near the fuse block on the driver's side. If your car cranks but won't start, and you don't hear the fuel pump prime for that one-second whir when you turn the key to "ON," a faulty fuel pump relay is one of the first things you should check.

Where Exactly Is the Fuel Pump Relay?

The 2001 Infiniti I30 (A33 generation) places the fuel pump relay inside the cabin rather than under the hood. This is a common source of confusion because many other vehicles have the relay in the engine bay fuse box.

The specific location is behind the driver's side kick panel. Here is how to get to it:

  1. Open the driver's door. You need access to the left side of the dashboard.
  2. Remove the kick panel. This is the plastic trim piece on the side of the center console area, near where your left foot rests. It typically snaps off or has a few screws.
  3. Look behind the panel. You will see the fuse block and a cluster of relays. The fuel pump relay is mounted here.

Important note: The 2001 model year is a transition year. The earlier 2000 model also has the fuel pump relay behind the left kick panel. However, if you are troubleshooting a 1998-1999 model, the location may be the same. Always consult your owner's manual or the fuse box cover diagram for the definitive label.

How to Identify the Correct Relay

Once you have the kick panel off, you will see several relays. Look for a rectangular relay that is typically black or dark gray. The fuse box cover often has a diagram printed on it or inside the owner's manual.

Here are the clues to identify the fuel pump relay:

  • Labeling: It may be labeled "FUEL PUMP," "FP," or "PUMP."
  • Wiring color: According to the factory wiring diagram, the fuel pump relay has a wire that connects to ECM terminal 28. The ECM controls this relay, sending power to the fuel pump for one second when the ignition is turned on, and then continuously while the engine is running.

Don't confuse it with the ECM relay. The ECM relay (also called the ECCS relay) is located in relay box No. 2 at the left front corner of the engine compartment. The fuel pump relay is specifically inside the cabin.

Quick Diagnostic Test Before You Replace Anything

Before you buy a new relay, run this simple test. It saves time and money.

1. The "Listen" Test
Turn the ignition key to the "ON" position (do not crank the engine). Listen carefully near the rear of the car. You should hear a faint humming or whirring sound from the fuel pump for about one second. If you hear nothing, the relay or the pump itself may be bad.

2. The "Feel" Test
Turn the ignition key to "ON." Place your fingers on the fuel pump relay behind the kick panel. You should feel a single click as it energizes. If you feel no click, the relay is likely not receiving power or is faulty.

3. The "Swap" Test
If you have a relay that is identical (same part number and pin configuration), you can swap it with another non-critical relay, like the horn relay or the rear window defogger relay. If the fuel pump starts working after the swap, the original relay was bad.

Common Symptoms of a Bad Fuel Pump Relay

A failing fuel pump relay can cause several issues. If you are experiencing any of these, suspect the relay before replacing the pump itself.

1. Engine Cranks But Won't Start
This is the most common symptom. The starter turns the engine over, but the engine never fires because no fuel is reaching the injectors.

2. No Fuel Pump Prime Sound
You should hear the pump run for one second when you turn the key to "ON." If you don't hear that sound, the relay is not sending power.

3. Intermittent Starting Problems
The car may start fine one day but refuse to start the next. This intermittent behavior is a classic sign of a failing relay where the internal contacts are worn or corroded.

4. Engine Stalls While Driving
If the relay fails completely while you are driving, the engine will stall immediately and may not restart until the relay cools down or is replaced.

What Else Could Be the Problem?

If you replace the fuel pump relay and the car still won't start, the issue may be elsewhere. Here are the other common culprits:

1. The Fuel Pump Itself
The pump is located inside the fuel tank. It has a service life and can wear out. You can test the pump directly by applying 12V power to its connector. If the pump runs, it is good. If it does not, replace the pump assembly.

2. Blown Fuses
Check the 10A and 15A fuses in the fuse block behind the left side of the dash. The fuel pump relay circuit is protected by these fuses. If a fuse is blown, the relay will not work.

3. Wiring Issues
There is a known case where an open wire between the fuel pump relay and the pump itself was the real problem. If the relay clicks but the pump does not run, check for continuity in the wiring harness from the relay to the fuel pump connector.

4. The ECM (Engine Control Module)
The ECM controls the ground side of the fuel pump relay. If the ECM is faulty, it may not send the signal to turn the relay "ON." This is less common but possible.

Replacement Cost and Part Numbers

If you have determined that the fuel pump relay is bad, here is what you need to know.

Estimated Cost
The average cost for an electronic control relay replacement (which includes the fuel pump relay) on a 2001 Infiniti I30 is around $187.35, with about $46 for parts and $95 for labor if you have a shop do it. If you do it yourself, you save the labor cost.

OEM Part Numbers
The genuine Infiniti fuel pump relay part numbers include:

  • 25230-79917
  • 25230-79981
  • 25230-79961
  • 25230-79945 (replaces some older versions)

Aftermarket Options
Several aftermarket manufacturers offer compatible relays. The key specifications to look for are:

  • Rated current: 40 Amps
  • Number of pins: 4 or 5 (depending on the specific design)
  • Voltage: 12V

Step-by-Step Replacement Guide

Replacing the fuel pump relay is a straightforward DIY job. Here is how to do it.

Tools you need:

  • A flathead screwdriver or trim removal tool (to pop the kick panel off)
  • A new fuel pump relay

Steps:

  1. Disconnect the battery. Remove the negative terminal cable from the battery. This is a safety precaution to prevent any shorts or accidental airbag deployment.
  2. Remove the left kick panel. Use the screwdriver or trim tool to gently pry the panel off. It may have a few clips holding it in place.
  3. Locate the relay. Look for the rectangular relay mounted to the fuse block. It will be labeled or you can identify it by the wire colors.
  4. Pull the old relay out. Grasp the relay firmly and pull it straight out. It should come out with moderate effort.
  5. Install the new relay. Push the new relay straight into the same socket until it clicks into place.
  6. Reinstall the kick panel. Snap the trim panel back into place.
  7. Reconnect the battery. Reattach the negative terminal.
  8. Test the system. Turn the ignition key to "ON" and listen for the fuel pump prime sound. If you hear it, the replacement was successful.

Why Choose a KEMSO Fuel Pump for Your Infiniti I30

If you have confirmed that the fuel pump itself is the problem (not just the relay), you need a reliable replacement. The fuel pump is the heart of your car's fuel system, and a cheap, low-quality pump will leave you stranded.

KEMSO fuel pumps are the best choice for your 2001 Infiniti I30. Here is why:

  • High Performance: KEMSO pumps are designed to deliver consistent fuel pressure and flow, ensuring your 3.0L V6 engine runs at peak performance.
  • OEM Replacement: These pumps are built to exact OEM specifications. They are a direct fit, meaning no modifications, no adapters, and no hassle. You simply remove the old pump and install the KEMSO.
  • Lifetime Warranty: KEMSO stands behind its products. Every fuel pump comes with a lifetime warranty, giving you peace of mind that your investment is protected.

Don't trust your Infiniti I30 to a generic, no-name pump. When you choose KEMSO, you are choosing quality, reliability, and long-term value.

Visit KEMSO Racing today to find the perfect fuel pump for your 2001 Infiniti I30: https://www.kemsoracing.com/

Key Takeaways

  • The 2001 Infiniti I30 fuel pump relay is located behind the left kick panel (driver's side footwell).
  • It is not in the engine bay, unlike many other vehicles.
  • A bad relay will cause the engine to crank but not start, and you will hear no fuel pump prime sound.
  • Test the relay by listening for a click, swapping it with a known good relay, or using a multimeter.
  • If the relay is good, check the fuel pump, fuses, and wiring before assuming the worst.
  • When replacing the fuel pump, choose a KEMSO brand pump for high performance, OEM fitment, and a lifetime warranty. Visit KEMSO Racing online at https://www.kemsoracing.com/ for more information.

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