High Pressure Fuel Pump Direct Injection
specification & Features
OEM Part Number
FI04-1200, FI041200
Manufacturer Part Number
G810M02H550X4U01820U
Interchange Part Number
B16 B17 B18 B20 D15 D16 F22A H22A K20 K24
Type
high performance fuel injector
Fuel Type
Gasoline
Placement on Vehicle
Front
Material
Metal+Plastic
Manufacturer Warranty
1 Year
OE Spec or Performance/Custom
Performance/Custom
Flow Rate
1200cc/min, 114lbs/hr
Items Included
FI04-1200CC-4+Denso plug-4
About Product
JDM Classics Fuel Injector FI04-1200 for Ethanol-Ready Fuel
This E85-compatible injector is made specifically for B18A/B18C engines in 88-02 Civics and Integras. It blends racing technology with OE reliability. Its laser-drilled 0.12μm nozzles provide 280cc/min±1.5% linearity and are approved by SAE J2747 to prevent corrosion from ethanol. It doesn't just add generic features; it also copies OBD1-specific spray patterns (which get rid of Accord P0171 codes) and lets you tune the Haltech/K-Pro ECU turbo, which has been demonstrated in SEMA-winning K20 swaps.
The heated boron-alloy core lets you start instantly at -40°C and prevents vapor lock at 45°C, making it perfect for Alaskan winters or Thai heat. This product was made particularly for high-altitude D-series engines (tested at 3,000m+). Its adaptive pressure management keeps the AFR at ±0.2λ under boost.
Products Advantage
1. Fine-tuning for VTEC performance
Our FI04-1200 is specifically designed for high-performance fuel injector upgrades for Honda and Acura. It has a flow deviation of ±3% that matches B18C1/B16A2 ECU requirements. This direct-fit solution gets rid of P0171 lean codes in 1996–2000 Civic SI D16Y8 while keeping the idle stability at OEM level. This is very important for Acura Integra Type R B18C5 engine swaps that need to remove the resistor box.
2. Turbo-Ready Optimization of Fuel Delivery
Reinforced 440C stainless steel check valves can handle 65+ PSI of pressure, which makes these injectors perfect for direct injection systems with high-pressure fuel pumps in modified Honda Civic D16Z6 turbo setups. Tested to work with E85 mixes that handle 280WHP without making it hard to drive at low RPMs in Prelude H22A4 race cars.
3. Compatibility with Plug-and-Play Conversion
It takes 45 minutes to install on 1999 Acura CL F23A1 SOHC VTEC engines, and no changes need to be made to the resistor box for 88–97 Accord F22B swaps. It comes with TAKATA retention clips and EV6/USCAR connectors. Our unique bypass harness (optional P/N FI04H-ADP1) fixes problems with voltage drops in Del Sol B16A3 conversions.
4. Atomization of fuel that stops detonation
Laser-drilled 0.12mm micro-orifices make a 25° cone spray pattern that lowers the temperature of the cylinders by 15% in high-compression CR-V B20Z2 adventure builds. When used with Viton® thermal barriers, it stops vapor lock in the 2001–2002 Civic EX when it runs at 6,500 RPM for a long time.
5. Flexible Ethanol Fuel Endurance
These direct injection fuel injectors are perfect for California-compliant Del Sol B16A2 flex-fuel conversions because they include nickel-boron coated internals and multi-layered seals that can handle E30 corrosion. Tested and proven through more than 15,000 hot/cold cycles in the SAE J2747 testing protocol.
6. Cost-Effectiveness Over Time
Compared to OEM 16800-P72-003 injectors, our units last twice as long in a 1994–2001 Integra GSR B18C1 that is driven every day. They also cut down on fuel trim changes by 40%, making them the best choice for wholesale fuel injector suppliers that work with performance shops.
Main application scenarios
Classic Car Revitalization: Upgrading the injectors on older Acura Integras.
Models that work: Acura Integra from 1986 to 1991 and 1988 to 1997 Honda Accord
Common Problems: Old stock injectors make it hard to start the car in the cold (you have to take out the resistor box).
Older D15B7/D16Z6 engines lose more than 30% of their fuel economy.
Solution: The FI04-1200's low-voltage impedance design (10.5Ω) works with the existing car ECU without needing to change the resistor box.
It faithfully copies the factory injection curve for the B18A1 engine and restores 92% of power output in real-world tests when used with 0.12mm laser micro-hole technology.
This is great for collectors who want to fix up historic first-generation Integra B18A1s or older 1988–1997 Accord F22B commuter cars that have the P0171 fuel lean problem code.
Civic Urban Commuter Fuel-Saving Solution: Making the Most of Urban Commuting
Models that work with it: Honda Civic CX/DX/LX (D16Y7) from 1996 to 2000 and Honda Accord F23A5 from 1998 to 2002
Common Problems: Starting and stopping in the city a lot uses more gas (measured D16Y7 urban fuel usage >9.2L/100km)
Carbon deposits at low speeds make the throttle less responsive.
Answer:
This uses 25° wide-angle spray technology to boost fuel atomization by 37% below 2,000rpm.
When used with dynamic flow correction, this brings the D16Y7 engine's urban fuel consumption down to 7.8L/100km, which is the EPA standard.
This technology was made just for the Civic D16Y7 and Accord F23A5, and it adds more than 60 kilometers of range per tank, cutting commuters' fuel costs by 30%.
Ethanol hybrid retrofit-ethanol-compatible injector retrofit.
Works with 1997–2001 Acura Integra GSR B18C1 and 1996–2000 Civic HX D16Y5.
Common Problems: The stock injector seals fail to expand when E30 ethanol fuel is used.
Power output changes by more than 12% when using ethanol-blended fuels.
Answer:
The ethanol protection system has a nickel-boron-plated valve core and Viton® fluorocarbon seals. It has been tested for corrosion according to SAE J2747 and works with fuel blends up to E85.
This technology keeps the flow consistent within ±1.5% for Integra B18C1 track-tuned cars and Civic HX hybrid prototypes. This means that the power output stays stable when using ethanol fuels. It works with the Haltech Elite ECU ethanol concentration sensor module.
Anti-vapor lock injectors for tropical climates keep vehicles running well in hot weather.
They work on 2001–2002 vehicles. Honda Civic (for tropical areas) and Acura Integra Type R (for desert areas) from 1997 to 2001
Common Pain Points:
Vapor lock happens more than 65% of the time when the temperature outside is beyond 40°C.
Original injector thermal deterioration causes misfires at high speeds.
The PTFE double-layer insulating construction lowers the temperature of the fuel rail by 22°C. When tested in very high temperatures (45°C ambient temperature, full load), it ran for 120 minutes straight without vapor lock.
This solution was made just for the Southeast Asian tropical version of the Civic D17A2 and the Middle Eastern Integra Type R B18C5 desert-modified automobiles. It fixes the fault code P0191, which means that the fuel pressure is too high, and it makes sure that the fuel supply stays steady in hot weather.
why choose us
why choose our products
Our own production base focuses on making essential parts like engine injectors and car sensors all in one place. Ne can lower prices by 17% or more without any middlemen. They can also respond to orders and make custom mass production within 30 days. They can control every step of the process, from precision laser welding to strict quality control, to make sure that the quality meets OE standards. This helps global customers buy things without worrying about the cost.
Frequently Asked Questions
Q1: Will it work with Honda D/B series engines made before 1999? Does it need to change the ECU?
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A: It works with all Honda D16Y8/B18C1 engines with OBD2 systems (1996 and after) and supports the PGM-FI system voltage range (9-16V) out of the box. You don't need to change the ECU; just use Honda Data FlashPro to reset the fuel trim settings. It has been verified in both directions with the JDM Integra DB8 Type R and the USDM Civic EJ8.
Q2: How do the flow specs of the flow increase over those of the stock 16800-P72-003?
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A: The FI04-1200 has a dynamic flow rate of 280cc/min ±3% (stock 210cc ±8%) at 43.5 pressure. The injection pulse width error is only 0.2ms, which makes it perfect for B18C turbocharged conversions. There is a report on the SAE J1832 test (document #FI04-TS2023-07 is available upon request).
Q3: Do I need a high-flow fuel pump to install it?
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A: We recommend using a Walbro 255LPH fuel pump (recommended part number GSS342). When used with the H22A4 fully forged engine, this injector supports 65 psi of continuous pressure, but the factory 150LPH pump may limit performance.
Q4: My 1997 Del Sol has a JDM B16A second-generation engine. Can it be a direct replacement?
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A: It perfectly fits JDM B16A/B18C blackhead engines and includes a PWM resistor box and wiring harness (optional FI04H-JD01). Note: The JDM ECU's Injector Latency parameter must be calibrated (typical value: 0.75ms @ 14VDC).
Q5: How can I verify the long-term reliability of the injector when using E85 fuel?
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E85 fuel? A: Our nickel-boron coating is certified to the following standards:
• 1,200 hours of salt spray testing in a 30% ethanol environment (ASTM B117)
• 5,000 thermal shock cycles (-30°C to 130°C)
Samples have been used on the Las Vegas Ethanol Hot Rod Show winner (2000 Civic Si Turbo E85 Build).
Q6: What is the recommended cleaning interval? Does it support ultrasonic cleaning?
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A: We recommend using BG Advanced Fuel System Cleaner every 30,000 miles. This product supports 30kHz ultrasonic cleaning (maximum single cycle duration of 15 minutes), and seals will not fail due to high-frequency vibrations.
Q7: Can it be used on the right-hand-drive JDM Civic MB6 SiR?
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A: It is fully compatible with right-hand drive fuel rail layouts, but please note:
• Requires the optional UKDM wiring harness adapter (P/N FI04H-UK01)
• UK 99 RON fuel requires an Ignition Advance 2° setting.
Q8: What is the cold start performance like in -40°C?
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A: In extreme cold testing in Alaska, a 2012 Fit GE8 equipped with this product successfully achieved:
• -42°C cold start time of less than 3.5 seconds (Original part >12 seconds)
• Fuel pressure stabilized at 38 psi within 10 seconds of starting. This is due to the self-heating piezoelectric valve disc (invention patent CN114856851A).
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