Safety Recall: 2018-2019 Acura NSX Fuel Pump Motor

Service Bulletin

June 30, 2020
Version 2


Safety Recall: 2018-19 NSX Fuel Pump Motor



Year Model Trim Level VIN Range
2018-19 NSX ALL Check the iN VIN status for eligibility.



Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working. If this occurs, the engine may not start, or the engine could stall while driving, increasing the risk of a crash.



Owners of affected vehicles will be sent a notification of this campaign.

Do an iN VIN status inquiry to make sure the vehicle is shown as eligible.

Some vehicles affected by this campaign may be in your new or used vehicle inventory.

Failure to repair a vehicle subject to a recall or campaign may subject your dealership to claims or lawsuits from the client or anyone else harmed as a result of such failure. To see if a vehicle in inventory is affected by this safety recall, do a VIN status inquiry before selling it.



Replace the fuel tank unit (fuel pump module).


This repair is for the fuel tank unit only (driver’s side), not the secondary fuel gauge sending unit (passenger’s side).




Due to limited supply, this will be a controlled part and will require a valid VIN when ordering.

Part Name Part Number Quantity
Fuel Tank Unit Kit 06177-T6N-316 1


For dealers experiencing a strong fuel smell from storing a fuel tank unit replaced under this service bulletin, the fuel tank unit may be disposed of immediately in accordance with local regulations. This only applies to the fuel tank unit replaced under this service bulletin. The published retention policy remains in effect for all other parts.            If you have any questions about this exception or other parts retention issues, contact the WPI Administrative Office at 937-642-2737.



Part Name Part Number Quantity
Acura Long-Life Antifreeze/Coolant Type 2 OL999-9011A 4
Acura Gear Oil GO-Type 08200-9018A 2




Part Name Tool Number Quantity
Fuel Pump Module Locknut Wrench 07AAA-SNAA100 or


Tank Removal Adapter 07AAK-T6NA300 1
Powertrain Lift Table

*OTCHON52200 and OTCHON52200A requires Lift Table Spacer Set.

OTC1595 or

OTCHON52200* or


Lift Table Spacer Set

(Only required if using Powertrain Lift table OTCHON52200A or


07AAK-T6NA210 1
Arm Holder 07AAB-T6NA400 1
Brake Disc Covers (set of 4) 07AAZ-T6NA800 1
Hose Plug Set 07AAZ-T6NA600 1
Fender Covers 07AAZ-T6NA200 1
Lug Nut Cap Removal Tool 07AAC-T6NA100 1
Wheel Stud Guide Pins (set of 2) 07AAB-T6NA200 1



Operation Number Description Flat Rate Time Defect Code Symptom Code Template ID Failed Part Number
3101HK Replace the fuel tank module (Includes alignment). 9.5 hr 6FE00 K7E00 B20027A 17045-T6N-A01




Fuel tank unit removal exposes fuel, which can ignite, causing a fire or explosion.

This can cause serious injury or death.

Always work in a well-ventilated area and keep sparks or open flames away.


  1. Set the vehicle on the lift. Refer to the service information.
  2. Move the driver’s seat all the way forward.
  3. Protect and cover the body panels surrounding the engine compartment.
  4. Relieve the fuel pressure. Refer to the service information.



Go to the procedure under Direct Injection Fuel Line and Port Injection Fuel Line.

  1. Disconnect the 12-volt battery. Refer to the service information.
  2. Remove the engine compartment covers. Refer to the service information.
  3. Remove the driver’s side air cleaner assembly. Refer to the service information.
  4. Disconnect the fuel vapor return tube (located below the removed driver’s air cleaner assembly).

fuel vapor return tube


  1. Turn off the service plug.

9.1 Remove the lower portion of the driver’s door seal. Refer to the service information.



Do not completely remove the driver’s door seal.

9.2 Remove the driver’s C-pillar trim.



To avoid damage when removing the C-pillar trim, make sure you detach it from the outer edge near the rear glass and not at the seat belt webbing pocket.

driver's C-pillar trim


9.3 Remove the driver’s rear side trim panel. Refer to the service information.

9.4 Pull the rear bulkhead carpet up to access and remove the service plug cover.

service plug cover


9.5 Remove the service plug. Refer to the service information.

  1. Raise the vehicle.
  2. Remove the rear wheels, and install the brake disk cover.



Make sure the brake discs do not get damaged.

  1. Remove the left and right inner fender liners. Refer to the service information.
  2. On the passenger side rear wheel well, disconnect the following:

passenger side rear wheel well


  • ORVR tube
  • Fuel vent tube
  • Port injection fuel feed pipe
  • Secondary unit connector
  • Fuel return tube with rubber clamp
  • Pipe clamps

passenger side rear wheel well


  1. On the driver’s side rear wheel well, do the following:

driver's side rear wheel well


  • Disconnect the filler neck tube. Replace the hose clamp during installation.
  • Remove the fuel pipe clamp.

filler neck tube


  • Disconnect the direct injection fuel feed pipe to the fuel tank unit.

direct injection fuel feed pipe


  1. Remove the engine undercover. Refer to the service information.
  2. Remove the (rear) center tunnel reinforcement. Refer to the service information.
  3. Remove the two gear oil thermostat housing fasteners.

gear oil thermostat housing


  1. Remove the (front) rear subframe. Refer to the service information.



Pay attention to the bolt length and locations.

  1. Drain the engine coolant only from the water pipe underneath the vehicle.



After the coolant has drained, install the drain bolts with new washers included in the kit.

Drain the engine coolant only


  1. Disconnect the water hoses from the center pipes, and cap off the ends. Replace the water outlet hose during installation.

water hoses


  1. Disconnect the two gear oil lines in the center tunnel. Refer to the service information.
  2. Disconnect the coolant heater hose, and cap it off.
  3. Disconnect the rear motor power cable. Replace the terminal cover seals during installation. Refer to the service information.

rear motor power cable


  1. Remove the rear bulkhead upper brace, rear bulkhead lower brace, and fuel pipe separator bracket. Refer to the service information.
  2. Remove the crossover pipe bracket bolts. Refer to the service information.
  3. Remove the fuel tank separator braces. Refer to the service information.
  4. Place the tank removal adapter and the powertrain lift table under the fuel tank assembly. Refer to the service information.
  5. Remove the fuel tank strap bolts.
  6. Slightly lower the fuel tank assembly. On the passenger side tank, reach over and disconnect the fuel return tube.
  7. Completely lower the fuel tank assembly, making sure none of the remaining hardlines and hoses get snagged.
  1. Place a rag or shop towel over the quick-connect fittings, and disconnect them.



This repair is for the fuel pump on the fuel tank unit (driver’s side), not the secondary fuel gauge sending unit (passenger’s side).

Place a rag or shop towel over the quick-connect fittings


  1. Loosen the fuel tank unit locknut using the Fuel Pump Module Locknut Wrench (T/N 07AAA-SNAA100 or 07AAA- SNAA101), then remove it.



Have an assistant help if needed.

Loosen the fuel tank unit locknut using the Fuel Pump Module Locknut Wrench (T/N 07AAA-SNAA100 or 07AAA- SNAA101)


  1. Remove the fuel tank unit.



Make sure not to bend or twist the fuel level sensor arm excessively.

Remove the fuel tank unit


  1. Partially insert the new fuel tank unit into the fuel tank with a new base gasket.



  • Be careful not to damage the new base gasket.
  • Do not coat the base gasket with any oil.
  • Make sure not to bend or twist the fuel level sensor arm excessively.

new base gasket


  1. Line up the mark on the fuel tank locknut to the start of the thread as shown. Then, partially install the fuel tank unit locknut with a new locknut plate by hand.

Line up the mark on the fuel tank locknut


  1. Tighten the fuel tank unit locknut to the specified torque.



If the locknut is not properly installed, the fuel tank can be damaged and will require replacement.



  • Have an assistant help if needed.
  • After tightening, make sure the marks are still lined up.
  • To avoid a fuel leak, make sure the base gasket is not pinched.

Line up the mark on the fuel tank locknut


  1. Install new retainers to the fuel line quick-connect fittings.
  2. Connect the fuel line quick-connect fittings.

Connect the fuel line quick-connect fittings


  1. Install the fuel tank assembly to the vehicle, and install the parts in the reverse order of removal.
  2. Top off the transmission fluid, and make sure to use a new washer on the filler plug. Refer to the service information.
  3. Fill the coolant, and air bleed the system. Refer to the service information.
  4. Do the Forced PI Idling Mode procedure to bleed the PI fuel line. Refer to the service information procedure How to Enter PGM-FI System Maintenance Mode.
  5. 2019 Models Only: Do the A/F Sensor Learn procedure. Refer to the service information.
  1. Do an alignment check, and make adjustments as needed.



The fuel tanks must be fully fueled when doing an alignment. Also, be sure to follow the pre-alignment checks. Refer to the service information.

  1. California residents only: Fill out a Vehicle Emissions Recall – Proof of Correction certificate, and use K7E as the recall number. Have the service consultant give the certificate to your client, and advise him or her to keep it as proof that the recall was completed. Your client will need to submit this certificate to the DMV only if the DMV requests it. If you need more certificates, use reorder number Y0657.

Vehicle Emissions Recall – Proof of Correction certificate




July 2020

NHTSA Recall 20V-314



This notice applies to your vehicle: XXXXXXXXXXXXXXXXX


This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.



Acura has decided that a defect which relates to motor vehicle safety exists in certain 2018 – 2019 model year NSX vehicles that may have a fuel pump module with out of specification impellers. Over time, these impellers may absorb an excessive amount of fuel and deform. A deformed impeller may cause the fuel pump to stop working.



An inoperative fuel pump could prevent an engine from starting or cause a vehicle to stall while being driven, increasing the risk of a crash.



The check engine light may illuminate as a result of this defect. Your vehicle may fail a state or local emissions inspection when such tests are required under state law if you do not have the repair done.



The dealer will replace the fuel pump assembly for free.



Please call any authorized Acura dealer and make an appointment to have your vehicle’s fuel pump assembly replaced for free. Once you make an appointment for your vehicle, be advised that the replacement process may take approximately 9 hours and 30 minutes. However, your dealer can provide you with a better estimate of the overall time for this service visit, as it may be necessary to make your vehicle available for a longer period of time. If you are not the only driver of this vehicle, please advise all other drivers and passengers of this important information.



You can check your vehicle’s eligibility for repair under this or any other recall. Please access the Acura Recall Lookup tool at and enter your Vehicle Identification Number (VIN).



The DMV will not renew your vehicle’s registration until this emissions recall has been completed. After completing the repair procedure, your dealer will give you a Vehicle Emission Recall – Proof of Correction certificate. Please make sure the dealer completes and provides you the certificate. Keep the certificate for your records as proof that the emissions recall was completed. Submit the certificate to the DMV only if the DMV requests it.



In order to ensure your full protection under the emission warranty provisions, it is recommended that you have your vehicle repaired as soon as possible. Failure to do so could be determined as lack of proper maintenance.



You received this notice because government regulations require that notification be sent to the last known owner of record. Our records are based primarily on state registration and title information, which indicate that you are the current owner of this vehicle. If this is not the case, or if any of the information is not correct, please complete, sign and return the Information Change Card and we will then update our records. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days.



If you have questions or concerns, we encourage you to:

  • contact your local Acura dealer; or
  • call American Honda’s Customer Support & Campaign Center at 1-888-234-2138 Monday through Friday, 6:00 a.m. to 5:00 p.m., Pacific Time; or
  • visit Twitter @AcuraClientCare; or
  • visit to use “Ask Us”, our 24/7 virtual agent.


If you believe that American Honda or the dealer has failed or is unable to remedy the defect in your vehicle, without charge and within a reasonable period of time (60 days from the date you first contact the dealer for a repair appointment), you may submit a complaint to the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590.

Alternatively, you may call the NHTSA toll-free Safety Hotline at 888-327-4236 (TTY 800-424-9153), or go to We apologize for any inconvenience this recall may cause you.


American Honda Motor Co., Inc.

Campaign #K7E / Service Bulletin #20-027


Julio del 2020

Campaña de seguridad NHTSA 20V-314



Esta notificación aplica a su vehículo: XXXXXXXXXXXXXXXXX


Esta notificación ha sido enviada a usted de acuerdo con el decreto de la oficina de Administración Nacional de Seguridad del Tráfico en

las Carreteras (National Highway Traffic Safety Administration o NHTSA por sus siglas en inglés).



Acura ha determinado que existe un defecto el cual está relacionado con la seguridad del vehículo en algunos vehículos modelo NSX año modelo 2018 – 2019 que pueden tener un módulo de la bomba de combustible con impulsores fuera de especificación. Con el paso del tiempo, estos impulsores pueden absorber una cantidad excesiva de combustible y deformarse. Un impulsor deformado puede ocasionar que la bomba de combustible deje de funcionar.



Una bomba de combustible inoperativa puede prevenir que un motor no arranque u ocasionar que un vehículo se detenga cuando es conducido, aumentando el riesgo de un choque.



La luz indicadora de fallas (verificar el motor) puede iluminarse como resultado de este defecto. Su vehículo puede fallar una inspección de emisiones local o estatal cuando tales pruebas sean requeridas bajo la ley estatal si usted no completa la reparación.



El concesionario reemplazará el conjunto de la bomba de combustible de forma gratuita.



Por favor llame a cualquier concesionario autorizado Acura y haga una cita para el reemplazo del conjunto de la bomba de combustible del vehículo de forma gratuita. Una vez que programe una cita para su vehículo, le avisamos que el proceso de reemplazo podría tardar aproximadamente 9 horas y 30 minutos. No obstante, su concesionario le puede ofrecer un mejor estimado del tiempo total de esta visita de servicio, ya que pudiera ser necesario que su vehículo esté disponible por un periodo más largo. Si usted no es el único conductor de este vehículo, por favor informe a todos los conductores y pasajeros sobre esta información importante.



Puede verificar la elegibilidad de su vehículo para que sea reparado bajo esta campaña de seguridad o bajo cualquier otra. Por favor acceda la herramienta “Acura Recall Lookup” en e ingrese su número de identificación del vehículo (VIN).



El DMV no renovará su registro del vehículo hasta que esta campaña de seguridad de emisiones haya sido completada. Después de completar este procedimiento de reparación, su concesionario le entregará un certificado de Prueba de Corrección – Campaña de seguridad de emisiones del vehículo (Vehicle Emissions Recall – Proof of Correction). Por favor asegúrese que el concesionario complete y le otorgue el certificado. Mantenga el certificado para sus registros como prueba que la campaña de emisiones fue completada. Envíe el certificado para el DMV solamente si el DMV lo solicita.



A fin de garantizar su protección completa bajo las disposiciones con respecto a la garantía de emisiones, se recomienda que haga que su vehículo sea reparado tan pronto sea posible. De no hacerlo podría determinarse como una falta de mantenimiento adecuado.



Usted recibió esta notificación porque las regulaciones gubernamentales requieren que esta notificación sea enviada al último propietario registrado. Nuestros registros están basados principalmente en la información del título y registro en el estado, el cual indica que usted es el propietario actual de este vehículo. Si no es el caso o si la información no está correcta, por favor complete, firme y devuelva la tarjeta de Cambio de información anexa y nosotros actualizaremos nuestros registros. Si usted es el arrendador de este vehículo, las regulaciones federales requieren que usted envié una copia de esta notificación a su arrendatario en un lapso de diez días.



Si usted tiene preguntas o inquietudes, le recomendamos que:

  • se comuníquese con su concesionario Acura local; o
  • llame al Centro de Apoyo al Cliente y Campañas de American Honda al 1-888-234-2138 de lunes a viernes, 6:00 a.m. a 5:00 p.m., hora del Pacífico; o
  • visite Twitter @AcuraClientCare; o
  • visite


Si usted cree que American Honda o el concesionario ha fallado o no le es posible reparar el defecto en su vehículo, sin cobro alguno y dentro de un período de tiempo razonable (60 días desde la fecha en que usted contactó por primera vez el concesionario para la cita de la reparación), usted puede enviar una queja a: Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590. Alternativamente, usted también puede comunicarse con el número de llamada sin costo (Toll-free) Safety Hotline de NHTSA al 888-327-4236 (TTY 800-424-9153), o visitar la página web


Le pedimos disculpas por cualquier inconveniente que esta campaña de seguridad pudiera causarle. Atentamente,


American Honda Motor Co., Inc.

Campaña #K7E / Boletín de servicio #20-027


Remedy Instructions and TSB

RCRIT-20V314-0840.pdf 1697.877KB



Remedy Instructions and TSB

RCRIT-20V314-8895.pdf 158.236KB



ISSUED Owner Notification Letter(Part 577)- K7E) – 2018-2019 Acura NSX

RCONL-20V314-1416.pdf 193.764KB



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