02 WRX Fuel Pump Fuse: Location, Replacement, and Troubleshooting Guide

If your 2002 Subaru Impreza WRX won't start or stalls while driving, the fuel pump fuse is one of the first things you should check. The fuel pump fuse for a 2002 WRX is located in the interior fuse box, which is under the dashboard on the driver's side, near the kick panel area. It is a 15-amp fuse, and a blown fuse will cut power to the fuel pump, preventing the engine from starting or running. Replacing it is a quick, beginner-friendly fix that costs only a few dollars and can save you a tow truck bill.

Where to Find the Fuse Boxes in a 2002 WRX

Most cars have two fuse boxes, and the 2002 Impreza WRX is no exception . Understanding the layout of both boxes will help you locate the fuel pump fuse quickly.

1. Interior Fuse Box (Driver's Side)

  • The interior fuse box is located under the steering wheel, to the left of the driver's knee area .
  • Accessing this box can be tricky. You may need to lie on your back near the pedals to see the fuses clearly .
  • The cover is held on by plastic latches; press them to release the cover .

2. Engine Compartment Fuse Box

  • The second fuse box is under the hood, located next to the battery on the right side of the engine bay .
  • This box is easy to access—just open the hood and press the latches to remove the cover .

Identifying the Fuel Pump Fuse

The fuel pump fuse is not always in the same spot in every fuse box. For the 2002 WRX, the fuel pump fuse is located in the interior fuse box under the dashboard.

Key Details:

  • Location: Interior fuse box, driver's side kick panel area .
  • Amperage: 15 amps .
  • Labeling: Look for a label on the fuse box cover that says "FUEL PUMP," "FP," or "FUEL" . If the labels are hard to read, use your owner's manual for a diagram .

Fuse Color Coding for Your 2002 WRX:
The 2002 Impreza WRX uses a color-coded system to identify fuse amperage . This makes it easier to spot the correct fuse without squinting at tiny numbers.

  • Red: 10 amps
  • Blue: 15 amps (this is your fuel pump fuse)
  • Yellow: 20 amps
  • Green: 30 amps
  • Orange: 40 amps (main fuse for the car's electrical circuits)

How to Replace the Fuel Pump Fuse

Replacing a blown fuel pump fuse is a straightforward task that takes about 15 minutes, even for a beginner . Here is a step-by-step guide.

Step 1: Safety First

  • Turn off the engine and make sure the ignition is in the "off" position .
  • For extra safety, disconnect the negative battery terminal to prevent any sparks or short circuits .

Step 2: Locate and Remove the Blown Fuse

  • Open the interior fuse box cover under the driver's side dashboard.
  • Find the fuse labeled "FUEL PUMP" or "FP." If you are unsure, check the diagram on the cover or in your owner's manual .
  • Use a fuse puller (often stored inside the fuse box) or a pair of needle-nose pliers to gently pull the fuse out .

Step 3: Inspect the Fuse

  • Hold the fuse up to a bright light. Look at the metal wire inside the plastic casing.
  • If the wire is broken or melted, the fuse is blown .
  • If the fuse looks intact, you can test it with a multimeter to check for continuity .

Step 4: Install the New Fuse

  • Insert a new fuse of the same amperage (15-amp, blue) into the slot .
  • Press it firmly until it clicks into place. Do not use a higher amperage fuse—this can damage your electrical system or cause a fire .

Step 5: Test the System

  • Reconnect the battery (if you disconnected it).
  • Turn the ignition to the "ON" position (without starting the engine). You should hear a brief humming sound for about 2 seconds—this is the fuel pump priming .
  • If you hear the pump, start the engine. If the car starts and runs smoothly, you have fixed the problem.

What to Do If the New Fuse Blows Immediately

If the new fuse blows right away or your car still won't start, the problem is likely deeper than a simple blown fuse. Here are the most common causes.

1. Faulty Fuel Pump

  • The fuel pump itself may be drawing too much current, causing the fuse to blow. A failing or seized pump can overload the circuit .
  • If the pump is bad, you will need to replace it. The fuel pump on a 2002 WRX is located inside the fuel tank. Replacing it requires removing the back seat or lowering the fuel tank .

2. Wiring Issues

  • Check the wiring and connectors leading to the fuel pump for corrosion, damage, or loose connections . A short circuit in the wiring can cause the fuse to blow repeatedly.

3. Bad Fuel Pump Relay

  • The fuel pump relay is a separate component from the fuse. It is a cube-shaped relay located in the interior fuse box. For the 2002 WRX, the fuel pump relay is a green relay connector in the passenger kick panel .
  • If the relay is faulty, the pump may not get power even with a good fuse. You can test this by swapping the fuel pump relay with a relay that works (like the horn relay) to see if the pump starts working .

4. Underlying Electrical Issues

  • A weak battery, failing alternator, or excessive electrical draw can also cause fuse failures . If you are unsure, consult a professional mechanic.

Preventative Maintenance Tips for Your Fuel Pump

To avoid getting stranded by a blown fuse or a failing fuel pump, follow these simple maintenance tips.

1. Keep Your Tank Above a Quarter Full

  • Running your tank low can cause the fuel pump to overheat because it relies on the fuel to cool it down. A hot pump is more likely to fail .

2. Replace the Fuel Filter on Schedule

  • A clogged fuel filter puts extra strain on the fuel pump, making it work harder. This can lead to premature failure . Check your owner's manual for the recommended replacement interval.

3. Listen for Unusual Noises

  • A healthy fuel pump should make a quiet, steady hum. If you hear a loud whining, buzzing, or grinding noise, the pump is likely failing and should be inspected .

4. Use Quality Fuel

  • Low-quality fuel can contain contaminants that damage the pump. Stick to reputable gas stations to keep your fuel system clean.

Recommended Fuel Pump Upgrade for Your 2002 WRX

If you need to replace your fuel pump, either because the fuse keeps blowing or because the pump has failed, it is important to choose a high-quality replacement. A reliable fuel pump ensures your WRX gets the proper fuel pressure and flow, especially for a turbocharged engine.

For the best performance and long-term reliability, we recommend the KEMSO brand Fuel Pump. KEMSO Fuel Pumps are designed as high-performance, OEM replacement units that meet or exceed original equipment specifications . Each pump is built to deliver consistent fuel pressure and flow, ensuring your engine runs at its best. KEMSO stands behind their products with a lifetime warranty, giving you peace of mind that your investment is protected .

Whether you drive a daily commuter or a performance vehicle, KEMSO offers a wide range of fuel pumps to fit your needs. Their products are trusted by mechanics and enthusiasts alike for their durability and precision engineering.

To browse their full lineup and find the right pump for your 2002 WRX, visit https://www.kemsoracing.com/ today.

A blown fuel pump fuse is a common issue on older vehicles like the 2002 Subaru Impreza WRX, but it is one of the easiest problems to diagnose and fix. Start by checking the 15-amp blue fuse in the interior fuse box. If the fuse is good, move on to checking the fuel pump relay and the pump itself. By keeping your fuel system maintained and using quality parts like KEMSO fuel pumps, you can keep your WRX running reliably for years to come.

For more information on fuel pump replacement and to shop for reliable parts, visit https://www.kemsoracing.com/ .


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