95 240SX Fuel Pump Relay Location: Complete Guide

The 95 240SX fuel pump relay location is behind the driver-side kick panel, inside the cabin near the driver's left foot. On the 1995–1998 S14 240SX, you will find a group of blue and black relays in that area. The fuel pump relay is the one with four black wires going to its connector. Other guides and owner discussions also point to the engine-bay relay/fuse box near the battery, where the circuit may be labeled "EGI" or "EGI pump," so it is worth checking both the under-dash relay and the under-hood fuse/relay labels before ordering parts . If your S14 cranks but will not start, check the 15-amp fuel pump fuse and the relay plug before replacing the pump. A working relay should click when you turn the key to ON, and Pin 5 at the relay should have continuity to terminal A at the fuel pump plug .

This guide is written for U.S. owners of the 1995 Nissan 240SX S14 with the 2.4L KA24DE engine. The 1995 model is the first year of the S14 chassis, often called the "Zenki" car by enthusiasts . Many of these cars have been modified, drifted, engine-swapped, or repaired over three decades. That history matters. A previous owner may have moved a relay, added a wiring harness, installed an aftermarket ECU, or changed the fuel pump. When the factory wiring has been altered, the service manual and the original wire colors should always take priority over a forum post or a parts-store listing.

1. Start With the Exact Car You Own

Before you pull trim panels or buy a relay, confirm three things:

1. Model year: 1995.
2. Chassis: S14. The earlier 1989–1994 cars are S13 and use a different layout.
3. Trim and engine: Base, SE, or LE, and whether the original KA24DE is still installed.

The 1995 240SX used the KA24DE 2.4-liter inline-four engine . U.S. cars did not receive the SR20DET from the factory, but many have been swapped. A swap can bring a different ECU, a different fuel pump controller, a different relay, and custom wiring. If your car has an SR20DET, a standalone ECU, or a rewired fuel system, the factory diagnosis below may not match what you see. Look for spliced wires, Scotch-Lok connectors, inline fuses, or a relay added near the battery or fuel tank.

Also check whether your car is an early or late 1995 production model. Nissan sometimes changed relay part numbers and fuse-box markings during a model run. Use your VIN when ordering genuine parts, because Nissan relay listings vary by year and application . A relay that fits a 1989–1994 S13 is not automatically correct for a 1995 S14.

2. What the Fuel Pump Relay Actually Does

The fuel pump relay is an electrical switch. It lets a low-current control circuit from the ignition switch and ECU turn a higher-current circuit on and off. When the relay closes, battery power reaches the fuel pump. When it opens, the pump stops .

On the S14, the published diagnostic guide identifies these relay plug terminals :

1. Pin 1: Power from the ignition switch; expect 12 volts with the key in the ON position.
2. Pin 2: Ground signal from the ECU; continuity to ground is present only for a short time after the key is turned ON.
3. Pin 3: Battery power through the 15-amp fuel pump fuse.
4. Pin 5: Power output to the fuel pump; it should have continuity to terminal A at the fuel pump connector.

Terminal B at the fuel pump plug, identified by the black wire, should have continuity to the chassis ground . This is the basic power path: battery, fuse, relay, wiring to the tank, pump, and chassis ground. A general 240SX circuit description follows the same order: battery, fuel pump fuse, relay, tank connector, and ground .

Why the short prime window matters. Many Nissan ECUs energize the pump for only a couple of seconds at key-on, then wait for a crank or running signal. If you turn the key ON and test the pump ten seconds later, you may see zero volts and wrongly condemn the pump. Have a helper turn the key while your multimeter is connected, or cycle the key from OFF to ON between tests. A pump that runs when powered directly but does not run from the key points to an open control circuit, not necessarily a failed pump .

3. How to Find the Driver-Side Kick Panel Relay

1. Park safely. Set the parking brake, put the transmission in neutral or Park, and switch the ignition OFF. Work on level ground. Remove the key.

2. Move the seat back. Slide the driver's seat fully rearward. This gives you room to see the lower dash and the trim near the footwell.

3. Locate the kick panel. It is the trim panel at the side of the driver's footwell, below the dashboard and ahead of the door opening. On U.S. left-hand-drive cars, it sits near where your left foot rests.

4. Remove the panel carefully. Most trim uses plastic clips, a screw, or a combination. Pull straight out with a plastic trim tool. Old S14 plastic is brittle, especially after years of heat and sun. Do not yank the panel by one edge.

5. Look for the relay group. The S14 diagnostic guide shows blue and black relays in this area. The fuel pump relay has four black wires going to it . Take a photo before unplugging anything. Label connectors if you remove more than one.

6. Check the hood fuse/relay box too. Some owner answers place the 1995 fuel pump relay in the engine-compartment fuse panel above the battery and refer to the "EGI pump" label . Nissan parts catalogs use the name "Relay EGI Pump Control" for genuine 240SX relays . Because factory labeling and owner terminology differ, compare your fuse-box lid diagram with the under-dash relay group. Do not assume the first relay you find is the fuel pump relay.

7. Confirm by wiring and testing. Color alone is not enough. The four-black-wire description is useful for an original harness , but a previous repair may have changed the connector. Match terminal behavior with a multimeter or use the factory wiring diagram for your VIN and production date.

4. Symptoms That Point to the Relay, Fuse, or Wiring

A failed relay can leave the pump with no power. Common results include a crank-no-start, a sudden stall, or no fuel pressure . Those symptoms also fit a blown fuse, bad ground, failed pump, failing ECU output, damaged connector, or empty tank. Test before replacing parts.

Watch for these clues:

1. No pump sound at key-on. A healthy pump usually makes a brief, quiet hum. No sound is a reason to test, not an automatic reason to buy a pump .
2. Starter cranks normally, engine never fires. If the engine briefly runs on starting fluid and then dies, fuel delivery becomes a strong suspect . Use starting fluid sparingly and follow product safety instructions; repeated use is not a diagnosis.
3. Engine starts, then stalls. The relay may drop out when hot, or the ECU may be losing its ground trigger.
4. Problem changes with temperature or vibration. Intermittent relay contacts, loose socket terminals, and corroded grounds often behave this way.
5. Fuse blows again. A replacement fuse that fails immediately suggests a short or an overloaded pump circuit, not a simple open relay .
6. Pump runs when directly powered, but not from the key. Check the relay trigger, ECU output, and wiring between the relay and tank .

Do not ignore the simple checks. Confirm there is fuel in the tank, the battery is charged, and the engine grounds are clean. A 1995 car can have a tired fuel gauge sender, so the dash reading may be wrong. One documented 240SX no-start case involved a nonworking fuel gauge and uncertainty about the actual fuel level .

5. Tools That Make the Job Easier

You do not need a professional scan tool for the basic electrical checks. Gather:

1. Digital multimeter with DC voltage, continuity, and resistance functions.
2. Test light for quick power checks, used carefully around ECU circuits.
3. Plastic trim tools for the kick panel.
4. Small mirror and flashlight to read relay labels and socket markings.
5. Factory service manual or a reliable wiring diagram for the 1995 S14.
6. Notepad or phone camera to record terminal numbers, wire colors, and connector positions.
7. Basic hand tools for the battery terminal and any fuse-box covers.
8. Fuel pressure gauge if you need to confirm actual rail pressure rather than just electrical operation .

A multimeter is listed as a required tool in the S14 fuel pump/relay diagnostic guide . Listening for a click is a quick screening test, not a full electrical test. A relay can click and still have burned or high-resistance contacts.

6. Step-by-Step Electrical Diagnosis

Work in order. Each step narrows the fault without guessing.

1. Inspect the fuse. Find the 15-amp fuel pump fuse referenced in the S14 guide . Remove it and check continuity. A fuse can look fine and still be open. If it is blown, find out why before installing another one. The "EGI" label may also appear in owner discussions, but one 1995 owner reported that pulling a fuse labeled EGI did not stop the engine, so do not rely on the label alone . Use the correct diagram.

2. Check the relay socket visually. Look for green corrosion, melted plastic, spread female terminals, water stains, or wires pulled out of the connector. Water can enter through a leaking windshield seal, a damaged cowl area, or a missing kick-panel fastener.

3. Feel for a click. Hold the relay in your hand and have a helper turn the key to ON without cranking. The S14 guide says a good relay should click . No click means you need to test coil power and the ECU ground signal. A click does not prove the load contacts are good.

4. Test Pin 1. With the key ON, check for 12 volts at the ignition-switch feed . No voltage points back toward the ignition switch, a fuse, or upstream wiring.

5. Test Pin 3. Confirm battery power at the terminal fed by the 15-amp fuel pump fuse . This supply may be present at all times, depending on the circuit. Compare your reading with the factory diagram.

6. Test Pin 2. The ECU provides the ground signal, and the S14 guide notes that continuity to ground is active only for a couple of seconds after key-on . Connect your meter before cycling the key. If there is no ECU ground trigger, check ECU power, grounds, crank/RPM input, and the wiring between the ECU and relay. Do not replace the ECU until its powers, grounds, and inputs are verified.

7. Bench-test the relay. The S14 guide says to apply battery power across Pins 1 and 2, then check continuity between Pins 3 and 5 . Polarity does not matter for that coil test according to the guide. Use fused jumper leads and keep the relay away from fuel vapors. If Pins 3 and 5 do not show continuity with the coil energized, replace the relay.

8. Check the output path. Verify continuity from relay Pin 5 to terminal A at the fuel pump plug . An open wire between the cabin and the tank will produce the same no-start as a dead relay.

9. Check the pump ground. Verify continuity from terminal B, the black-wire terminal at the pump plug, to a clean chassis ground . Resistance above one ohm on the ground side is flagged as a problem in a 240SX wiring-guide summary . Clean the ground point to bare metal and reconnect it securely.

10. Check voltage at the pump. With the key ON, the S14 guide says a reading of 12 volts at the pump plug points toward a bad fuel pump . Remember the short prime window. If you see full battery voltage and a good ground but no pump operation, the pump is the likely failure.

11. Verify fuel pressure. Electrical power does not prove the pump is building pressure. A fuel pressure gauge gives a more accurate result than sound or voltage alone . Compare the reading with Nissan's specification for the KA24DE.

12. Swap a relay only as a controlled test. A common suggestion is to exchange the fuel pump relay with another relay of the same type and rating, such as the horn relay; if the no-start disappears and the horn stops working, the original relay is suspect . Never swap relays with different part numbers, pin layouts, or current ratings. Return the known-good relay to its original circuit after testing.

7. Relay, Fuse, Pump, or ECU: How to Separate Them

The S14 guide lists three main failure points: the fuel pump, fuel pump relay, and ECU . In real cars, the fuse, connector, ground, and wiring belong on that list too.

A bad relay is likely when:

1. The fuse is intact.
2. Battery power and ignition power are present at the socket.
3. The ECU ground trigger appears at key-on.
4. The relay does not close, or Pins 3 and 5 do not connect during a bench test.
5. A known-good relay of the exact same specification restores pump operation.

A pump is likely when:

1. The relay and fuse pass their tests.
2. The pump connector shows proper voltage during the prime window.
3. The pump ground has low resistance.
4. The pump stays silent, or pressure is below specification.
5. The engine has other signs of low fuel pressure, such as sputtering at highway speed or loss of power under acceleration .

An ECU or control-side issue is likely when:

1. The relay coil never receives its ground trigger.
2. The pump runs when the control circuit is correctly activated in a bench or direct test, but not from the key.
3. ECU power, ground, and input checks point to a control fault.
4. The car has an engine swap or standalone engine management with altered wiring.

A public 240SX discussion notes that the ECU controls the fuel pump by providing a ground . That matches the S14 Pin 2 description . It also explains why a break in the ECU trigger wire can look exactly like a dead pump.

A wiring issue is likely when:

1. Continuity is missing between relay Pin 5 and pump terminal A.
2. Continuity is missing from pump terminal B to chassis ground.
3. Voltage is present at one side of a connector but not the other.
4. Wiggling a harness changes the symptom.
5. The fuse blows repeatedly .

Corroded relay sockets are a known trouble spot in 240SX wiring discussions, particularly behind the battery tray on S13 cars . Do not transfer that S13 detail directly to a 1995 S14, but do inspect every engine-bay socket if your 1995 car uses the under-hood EGI relay arrangement .

8. Safety Rules for Fuel System Work

Fuel vapor is dangerous. Treat every fuel-system job as a fire risk.

1. Work outdoors or in a well-ventilated area. Keep the car away from water heaters, pilot lights, grinders, and cigarettes.
2. Disconnect the negative battery cable before unplugging fuel pump wiring or opening fuel lines. Guidance on fuel pump troubleshooting also recommends disconnecting the battery to prevent sparks and keeping a fire extinguisher nearby .
3. Relieve fuel pressure using the procedure in the Nissan factory service manual. One general guide suggests removing the fuel pump fuse and running the engine until it stalls before disconnecting the battery, but a car that will not start may require the manufacturer's service-port procedure instead .
4. Do not run a pump dry. Fuel cools and lubricates an in-tank electric pump .
5. Use fused jumper wires. Never bridge a relay socket with a loose piece of wire. Bypassing a relay is sometimes mentioned as a test, but it should be done with caution and only by someone who understands the circuit .
6. Inspect for leaks before starting. After any pump or line work, prime the system, then check the pump assembly and all connections .
7. Stop if you smell raw gasoline. Find the source before turning the key again.
8. Use jack stands, not a jack alone, if you need to reach the tank from below.
9. Wear eye protection. Pressurized fuel can spray when a line is opened.
10. Get professional help for an intermittent fault, a repeated blown fuse, or a modified harness. Intermittent wiring faults and repeated fuse failures may require advanced diagnostic equipment .

9. How to Replace the Relay Correctly

1. Identify the exact part. Compare the old relay's part number, terminal layout, and rating with the replacement. Nissan parts listings show a relay named "Relay EGI Pump Control," and fitment should be checked by year or VIN .

2. Disconnect the battery. Remove the negative cable and keep it away from the terminal.

3. Remove the kick panel or fuse-box cover. Do not force brittle clips.

4. Photograph the relay group. Record which relay came from which socket.

5. Pull the relay straight out. A slight side-to-side motion helps. Do not tug on the wires.

6. Inspect the socket. Clean light corrosion with electrical contact cleaner and a suitable small brush. Replace a melted or loose terminal rather than bending it and hoping.

7. Install the new relay. Push it fully into the socket. It should seat evenly.

8. Reconnect the battery and test. Turn the key to ON. Listen for the relay click and the brief pump prime. If the car starts, let it idle and check that it does not stall when warm.

9. Reinstall trim. Make sure no wiring is pinched behind the kick panel.

10. Road-test carefully. Accelerate moderately and watch for hesitation. Recheck for any new electrical issues.

If a new relay does not fix the problem, return to the voltage and continuity checks. A new part does not repair a missing ECU trigger, a broken ground, or an open wire to the tank.

10. When the Fuel Pump Is the Real Problem

The fuel pump on a 240SX is an in-tank electric pump. On modern fuel-injected vehicles, the pump sits inside the tank and delivers pressurized fuel to the rail and injectors, commonly in the 40–60 PSI range . Fuel also helps cool and lubricate the pump, which is why frequently driving with the tank near empty can shorten its life .

Signs of a failing pump include:

1. Extended cranking before starting.
2. Sputtering at highway speed.
3. Loss of power during acceleration or uphill driving.
4. A loud whine from the fuel tank.
5. Sudden stalling.
6. Normal cranking with no start and no pump prime .

These symptoms are not exclusive to the pump. A clogged fuel filter, weak voltage, poor ground, or failing relay can create similar problems. A guide for U.S. drivers recommends replacing the fuel filter at the same time as the pump, because a clogged filter is a common cause of premature pump failure . On a 1995 car, also inspect old rubber hoses, the tank connector, and the lock-ring seal.

Access to the pump may require dropping the fuel tank or using an access panel, depending on the vehicle . Follow the Nissan service manual for the S14. Do not cut a new access hole unless you know exactly what is behind the panel; fuel lines, wiring, and the tank are close by.

Before installing a replacement pump, clean the tank sealing surface, use a new O-ring or gasket, transfer the fuel level sender or harness parts that must be reused, align the module, and secure the lock ring correctly . Prime the system by cycling the key to ON for about two seconds several times, then check every connection for leaks before a road test .

11. Special Notes for Modified 240SX Cars

The S14 is popular for drifting and engine swaps. That makes the 1995 fuel system less predictable than a stock commuter car.

1. Engine swaps. An SR20DET swap may use a different ECU and a different pump-control strategy. One public discussion about a swapped 1995 240SX describes a no-prime condition and notes that the ECU controls the pump through a ground signal . Trace the wiring that is actually in the car.

2. Standalone ECUs. Aftermarket engine management may assign a different output to the fuel pump. Check the installation manual and the current tune configuration. AEM documentation for 1996–1998 240SX applications, for example, shows configurable pin assignments . That does not directly define a 1995 factory car, but it shows why pin assumptions can fail on modified cars.

3. High-flow pumps. Larger pumps may draw more current. Use properly sized wiring, a relay with the correct rating, and a fuse that matches the circuit design. Never install a higher-amp fuse just to stop it from blowing.

4. Added kill switches and alarms. Look for hidden switches, alarm relays, and splices near the driver kick panel, steering column, and battery.

5. Track use. Vibration, heat, and repeated low-fuel cornering can expose weak connections and shorten pump life. Keep the tank above one-quarter full when possible .

6. Ethanol blends. U.S. pump fuel commonly contains ethanol. Choose replacement parts rated for the fuel you use. KEMSO describes its pumps as compatible with gasoline and E85/ethanol fuels .

12. Common Mistakes That Waste Money

1. Replacing the pump before checking the fuse and relay. The pump is harder to reach than the kick panel.
2. Testing too late. The ECU ground trigger may last only a few seconds after key-on .
3. Assuming every blue relay is the fuel pump relay. Confirm the wire count, pin behavior, and diagram .
4. Confusing the S13 and S14 layouts. The 1995 car is S14; 1989–1994 cars are S13 .
5. Ignoring the ground side. A pump needs both power and a solid return path .
6. Using a relay with the wrong pinout. A part that plugs in is not always electrically correct.
7. Clearing a blown fuse without finding the short. Repeated fuse failure needs a circuit diagnosis .
8. Trusting a sound test alone. A click or hum does not confirm fuel pressure. Use a gauge when pressure is in question .
9. Forgetting the car's modification history. Earlier repairs may have moved or replaced the factory relay.
10. Skipping the leak check. Prime, inspect, then start .

13. A Practical Diagnostic Log for U.S. Owners

Write down your results. A short log helps a shop, a parts counter, or another enthusiast understand what has already been ruled out.

1. Vehicle details: VIN, production date, trim, transmission, engine, and known modifications.
2. Complaint: crank-no-start, stall when hot, intermittent no-prime, or low power under load.
3. Battery voltage: record the static reading and the reading while cranking.
4. Fuse: label, amperage, visual condition, and multimeter continuity.
5. Relay location found: driver kick panel, engine-bay box, or a modified location.
6. Relay part number and terminal count: include a photo.
7. Key-on click: yes or no, and where it came from.
8. Pin 1, Pin 2, Pin 3, and Pin 5 results: record voltage or continuity and the exact timing of the test .
9. Pump connector: voltage at terminal A, ground continuity at terminal B .
10. Relay-to-pump continuity: Pin 5 to terminal A .
11. Fuel pressure: gauge reading and the specification used.
12. Parts replaced: brand, part number, and date.
13. Final result: fixed, improved, unchanged, or intermittent.

This record is especially useful on a 30-year-old car. It prevents the next person from repeating the same test or replacing the same good part.

14. Frequently Asked Questions

Is the 1995 240SX fuel pump relay under the hood or inside the car? A detailed 1995–1998 S14 guide places it behind the driver-side kick panel, in a group of blue and black relays, with four black wires at its connector . Another owner answer points to the engine-compartment fuse panel above the battery and mentions an "EGI pump" label . Nissan parts listings use "Relay EGI Pump Control" for some 240SX relays . Check both locations, then confirm the correct component with the fuse-box diagram, wire testing, and your VIN. Production changes, labeling differences, and previous repairs explain why owners report more than one answer.

Can I drive with a failing fuel pump relay? It is not a good idea. If the relay opens while driving, the engine can stall without warning. A failed relay can cut power to the pump and cause a no-start or sudden stall . Fix the fault before using the car on the highway.

Does the fuel pump run continuously with the key ON? Not always. The S14 guide says the ECU ground signal at Pin 2 is active for only a couple of seconds after turning the key ON . A short prime is normal on many fuel-injected cars. Test during that window.

Will a bad relay trigger a check-engine light? Do not count on it. On an OBD-II-era or older Nissan, an electrical fault in the pump circuit may not set a code that names the relay. A scan tool is useful, but voltage and continuity tests are more direct for this circuit.

What amperage fuse should I check? The S14 guide identifies a 15-amp fuel pump fuse feeding relay Pin 3 . Verify the label and value against your own fuse-box diagram before testing or replacing anything.

Can I swap the horn relay to test it? Only if the part number, terminal layout, and rating are identical. A general 240SX guide suggests this type of same-spec relay swap as a quick test . Do not guess.

Why does my new pump still not prime? Check the ECU ground trigger, the relay socket, the fuse, the wiring from relay Pin 5 to the tank, and the pump ground. A new pump cannot run without a complete circuit .

How long should a fuel pump last? Published KEMSO guidance gives a range of 80,000 to 100,000 miles in one article and 100,000 to 200,000 miles in another . The difference shows that lifespan varies with driving habits, fuel level, fuel quality, electrical health, and part quality. Treat those figures as general ranges, not a guarantee for a 1995 car.

Should I replace the fuel filter too? Yes. A clogged filter is described as a common cause of premature pump failure, and replacing the filter with the pump helps the new unit operate under proper conditions .

When should I call a professional? If the fuse keeps blowing, you smell fuel, the wiring has been heavily modified, or the fault is intermittent, get help. Repeated fuse failure and intermittent faults may need deeper circuit tracing .

15. Choosing a Replacement Fuel Pump

Once the relay, fuse, wiring, and ground have been checked and the pump is confirmed as the fault, part quality matters. Cheap, unbranded pumps often use lower-grade materials and less precise manufacturing, and general replacement guidance warns that they can fail early . A pump that fails soon after installation means paying for the job twice. On an S14, the labor and tank access make that mistake especially expensive.

Look for:

1. Correct application. Match the year, chassis, engine, and connector. Use your VIN where possible.
2. OEM-style fit. A direct replacement should fit the factory mount and connections without custom adapters .
3. Consistent pressure and flow. The replacement should meet or exceed the original equipment specification .
4. Fuel compatibility. Confirm suitability for the gasoline or ethanol blend used in your area.
5. A new seal or O-ring. Do not reuse a flattened old gasket .
6. A clear warranty. Warranty coverage is a practical signal of the manufacturer's confidence in the part .

Recommended Fuel Pump: KEMSO

We recommend KEMSO Fuel Pumps for your replacement. KEMSO Fuel Pumps are high-performance, OEM Replacement units designed to meet or exceed factory specifications for flow and pressure, with direct-fit installation that does not require wiring, bracket, or fuel-line modifications . Every KEMSO Fuel Pump comes with a lifetime warranty, so your purchase is protected for as long as you own the vehicle . KEMSO also describes its pumps as compatible with gasoline and E85/ethanol fuels, an important consideration for U.S. drivers and performance builds . Whether you are returning a stock 1995 240SX to reliable daily use or supporting a modified KA24DE build, choose the exact application for your car and follow the installation and leak-check procedures carefully. Visit the official KEMSO website to review the fuel pump lineup and confirm fitment: https://www.kemsoracing.com/ .

16. Final Checklist Before You Close the Hood

1. Confirm the driver-side kick panel relay and the engine-bay EGI/fuse box layout for your specific car .
2. Verify the 15-amp fuel pump fuse and the relay socket condition .
3. Test relay Pins 1, 2, 3, and 5 at the correct time in the key-on cycle .
4. Verify continuity from relay Pin 5 to pump terminal A and from pump terminal B to chassis ground .
5. Check fuel pressure before condemning or approving the pump .
6. Replace only the part that failed, using the correct specification.
7. Prime the system and inspect every fuel connection for leaks .
8. Reinstall trim securely and keep your diagnostic log with the car's records.
9. If the car is modified, save a photo of the final wiring layout for future repairs.

The fastest route to a fix is a simple power-path check: confirm the fuse, prove that the relay switches, verify voltage and ground at the tank connector, and then measure fuel pressure . Start at the driver-side kick panel, keep the under-hood EGI label in mind, and let the test results decide which part gets replaced.

For high-performance, OEM Replacement fuel pumps backed by a lifetime warranty, visit: https://www.kemsoracing.com/

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