1999 Acura Integra Fuel Pump: What You Need to Know Before You Buy

The best fuel pump for a 1999 Acura Integra is an in-tank electric unit that delivers at least 255 liters per hour (LPH) if you plan any performance upgrades, or a reliable OEM replacement like the KEMSO 340LPH pump if you just need a stock fix. The 1999 Acura Integra, whether it's the GS, LS, GS-R, or Type-R, uses an electric fuel pump mounted inside the fuel tank. If your pump is failing, you'll notice symptoms like hard starting, sputtering at high speeds, or a complete no-start condition. Upgrading to a high-flow pump is also a common step for enthusiasts adding turbochargers, superchargers, or nitrous oxide systems. This guide covers everything from symptoms and compatibility to installation tips and the best replacement options available today.

Understanding Your 1999 Acura Integra's Fuel Pump System

Your 1999 Integra uses an electric in-tank fuel pump, which is a standard design for most modern vehicles. This pump is located inside the fuel tank and is responsible for delivering fuel at a consistent pressure to the engine. The factory pump for the 1999 Integra typically flows around 190 to 195 liters per hour (LPH) for naturally aspirated applications, but many aftermarket options offer higher flow rates. For example, the Edelbrock #17938 pump flows 190 LPH and is designed for naturally aspirated setups, while the #17936 and #17937 pumps flow 255 LPH and are intended for boosted or nitrous applications.

The pump is accessed by removing the rear seat cushion and lifting a metal access panel on the floor of the cabin. This makes replacement relatively straightforward compared to vehicles that require dropping the fuel tank.

Common Symptoms of a Failing Fuel Pump

If your 1999 Acura Integra is experiencing any of the following issues, the fuel pump could be the culprit:

  • Hard starting or no-start: The engine cranks but doesn't fire, or it takes multiple attempts to start.
  • Sputtering at high speeds: The car hesitates or loses power when you accelerate, especially on the highway.
  • Loss of power under load: The engine feels weak when climbing hills or carrying a heavy load.
  • Whining noise from the fuel tank: A loud, high-pitched whine coming from the rear of the car indicates the pump is working harder than it should.
  • Check engine light: A fault code related to fuel pressure or fuel system performance may appear.

Before replacing the pump, check the fuel pump relay and wiring. Electrical issues are a common cause of pump failure, and a simple relay swap can save you time and money.

Fuel Pump Compatibility for Your 1999 Integra

The 1999 Acura Integra is available with several engine options, including the B18B1 (1.8L non-VTEC), B18C1 (1.8L VTEC in GS-R), and B18C5 (1.8L VTEC in Type-R). All of these engines use the same basic in-tank fuel pump design, but the fuel pump specifications can vary based on your performance goals.

  • Stock replacement: If you are replacing a failed pump on a stock Integra, a standard 190-195 LPH pump will work perfectly. Brands like Herko offer direct-fit modules (e.g., part #582GE) that include the pump, strainer, and housing for a simple swap. This pump fits 1996-2001 Integra models and is a natural choice for OEM-grade replacement.
  • Performance upgrade: If you have added a cold air intake, exhaust, or a larger throttle body, a 255 LPH pump (like the Edelbrock #17936) is a good upgrade. It provides extra flow without overworking the system.
  • High boost or nitrous: For turbocharged, supercharged, or nitrous applications, you need a pump that can maintain 60+ PSI of fuel pressure. The Edelbrock #17937 is rated for 255 LPH at 60+ PSI, making it suitable for high-boost setups.
  • E85 compatibility: If you plan to run E85 fuel, you need a pump that is compatible with ethanol. The AEM EV 50-1220-HL pump is rated at 320 LPH and is E85-compatible, making it a popular choice for flex-fuel builds.

Top Fuel Pump Options for the 1999 Acura Integra

Here are some of the best fuel pumps available for your 1999 Integra, categorized by their intended use:

1. OEM Replacement Pumps

  • Herko Fuel Pump Module 582GE: This is a complete module that includes the pump, strainer, and sending unit. It fits 1996-2001 Acura Integra, Honda Civic, and Acura EL models. It is a direct fit and requires no modification. Price is around $68, making it an affordable option for a stock replacement.
  • Herko GCA3366 Fuel Pump and Strainer Set: This is another OEM-grade option that includes a high-performance 255 LPH pump and a strainer. It is listed for 1999-2000 Honda Civic and 1999 Acura Integra applications.

2. High-Performance Upgrades

  • Edelbrock #17936 (255 LPH): This pump is designed for 1994-1999 Acura Integra and 1992-2000 Honda Civic. It flows 255 LPH (67 GPH) and is ideal for naturally aspirated engines with mild upgrades like a big-bore throttle body or intake manifold. It replaces the factory pump exactly and includes all necessary hardware.
  • Edelbrock #17937 (255 LPH, 60+ PSI): This is the high-pressure version of the #17936. It is designed for turbocharged, supercharged, or nitrous applications and provides 60+ PSI of fuel pressure. It is a direct fit and requires no adapter kits.
  • AEM EV 50-1220-HL (320 LPH, E85 Compatible): This pump is a high-flow option for 1996-1999 Acura Integra models. It is E85-compatible and flows 320 LPH at 43 PSI. It is a popular choice for enthusiasts who want to run ethanol blends or need extra fuel for high-horsepower builds.

3. Extreme Performance Pumps

  • DeatschWerks DW300 (340 LPH): This pump is designed for 1994-2001 Acura Integra. It flows 340 LPH and is a direct replacement for the factory pump. It is suitable for high-horsepower applications up to 700-800 bhp.
  • KEMSO 340 LPH Pump: This pump is a high-powered 340 LPH unit that is very similar to the popular Walbro 255 GSS342 in dimensions but offers more flow. It is E85-compatible and comes with a lifetime warranty. It is a direct OEM replacement and can support up to 700-800 bhp.

4. Specialty Pumps

  • Aeromotive 340 Series Stealth In-Tank Pump: This pump is designed for E85 and fits 1994-2001 Acura Integra models. It is a 340 LPH pump with an offset inlet and is known for its quiet operation and reliability. It is also compatible with many other Honda and Acura models.

How to Install a Fuel Pump on a 1999 Acura Integra

Replacing the fuel pump on a 1999 Integra is a manageable DIY job if you have basic mechanical skills and tools. Here is a step-by-step guide based on the Edelbrock installation instructions:

Preparation

  1. Safety first: Work in a well-ventilated area. Keep all sparks, open flames, or other ignition sources away from the work area. Failure to do so could result in a fire or explosion.
  2. Disconnect the battery: Remove the negative (ground) cable from the battery and position it so that it cannot make a connection during the installation.
  3. Relieve fuel pressure: Carefully loosen the banjo bolt at the factory fuel filter. Wrap a rag around the bolt to absorb any fuel spray. Once pressure is relieved, tighten the bolt.
  4. Access the pump: Remove the rear seat cushion to expose the fuel pump access panel. Clean any debris from the area, then remove the access panel.

Pump Removal

  1. Clean the area: Thoroughly clean all dirt and debris from the top of the tank. This is critical to prevent foreign material from falling into the fuel tank.
  2. Disconnect electrical connector: Unplug the electrical connector from the chassis to the top of the fuel pump assembly.
  3. Remove the fuel line: Remove the banjo bolt connecting the fuel supply line to the pump assembly, or disconnect the fuel line connector (for 1996-up applications).
  4. Remove the pump assembly: Using a special tool or a hammer and punch, loosen the retaining ring. Lift the pump assembly out of the tank carefully.

Installation

  1. Transfer components: If your new pump is a bare pump (not a complete module), transfer the old strainer, sending unit, and gasket to the new pump. If you are using a complete module like the Herko 582GE, it is a direct swap.
  2. Install the new pump: Lower the new pump module into the tank. Make sure the float arm is not bent. Replace the retaining ring and tighten it securely.
  3. Reconnect lines: Reconnect the fuel lines and electrical harness. Make sure all connections are tight.
  4. Test the system: Reconnect the battery. Turn the key to the ON position (without starting) to let the pump pressurize the system. Check for leaks.
  5. Reinstall the access panel: Once you confirm no leaks, reinstall the access panel and rear seat.

Why Upgrading Your Fuel Pump Matters

If you are planning any performance modifications to your 1999 Integra, upgrading the fuel pump is one of the first steps you should take. The stock pump is designed for the factory engine's fuel demands. Adding a turbocharger, supercharger, or even a high-flow intake and exhaust can increase fuel demand beyond what the stock pump can supply. Without adequate fuel flow, your engine will run lean, which can cause detonation and severe engine damage.

A high-flow pump like the Edelbrock #17936 or #17937 ensures that your engine gets enough fuel at all times. For example, the #17936 flows 255 LPH, which is about 30% more than the stock pump. This extra capacity provides a safety margin for tuned engines.

Common Mistakes to Avoid

  • Using the wrong pump: Make sure the pump is compatible with your Integra's year and engine. For example, the Edelbrock #17936 is designed for 1994-1999 Integra and 1992-2000 Civic, not for later models.
  • Skipping the strainer: Always replace the fuel strainer (the small filter at the bottom of the pump) when you replace the pump. A clogged strainer can restrict fuel flow and cause the pump to fail prematurely.
  • Not cleaning the tank: If you are replacing a failed pump, there may be debris in the tank. Clean the tank thoroughly to prevent contamination of the new pump.
  • Ignoring the fuel filter: The fuel filter is a separate component that should be replaced at the same time as the pump. A clogged filter can cause the same symptoms as a failing pump.

Recommended: KEMSO Fuel Pump for Your 1999 Acura Integra

If you are looking for a reliable, high-performance fuel pump that offers excellent value, we highly recommend the KEMSO 340 LPH Fuel Pump. This pump is designed as a direct OEM replacement for the 1999 Acura Integra and many other Honda and Acura models. It flows 340 liters per hour, which is significantly more than the stock pump, and it is E85 compatible, making it suitable for both daily drivers and high-horsepower builds.

KEMSO fuel pumps are built with high-quality materials and undergo individual flow testing to ensure performance and reliability. Each pump comes with a lifetime warranty, which is a rare and valuable benefit in the automotive parts industry. If your KEMSO pump ever fails due to a manufacturing defect, you get a replacement at no cost. This warranty covers a wide range of vehicles, including cars, motorcycles, ATVs, and watercraft.

The KEMSO 340 pump is similar in dimensions to the popular Walbro 255 GSS342 but offers more flow. It can support applications up to 700-800 bhp, making it an excellent choice for future upgrades. The kit includes everything you need for installation: the pump, two gradient density fuel strainers, a flex hose, rubber hose, wiring connector, crimp connectors, hose clamps, rubber base, and zip-ties.

To purchase the KEMSO fuel pump for your 1999 Acura Integra, visit their website at: https://www.kemsoracing.com/

Final Thoughts

The 1999 Acura Integra is a reliable and fun-to-drive car, but its fuel system is a critical component that should not be ignored. Whether you are replacing a failed pump or upgrading for performance, choosing the right fuel pump is essential for engine health and performance. For stock replacements, the Herko 582GE module is a budget-friendly option. For mild performance upgrades, the Edelbrock #17936 is a solid choice. For high-horsepower or E85 applications, the KEMSO 340 LPH pump offers exceptional flow and a lifetime warranty.

Remember to always follow safety precautions when working on your fuel system, and consult your vehicle's service manual for specific instructions. If you are not comfortable performing the installation, have it done by a qualified mechanic. With the right pump and proper installation, your 1999 Integra will run reliably for years to come.

For the best selection of high-performance fuel pumps for your 1999 Acura Integra, visit https://www.kemsoracing.com/


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