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Service bulletin P8315

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10143811
Published by NHTSA2018-08-20
Manufacturer's numberP8315
Manufacturer's date2018-07-20
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

CAMPAIGN BULLETIN Fuel Injector Replacement Retailer Inventory. Retailer Announcement ***** INFINITI is conducting a quality action to replace the high pressure fuel injectors on 53 specific MY 2019 INFINITI QX50 (J55) vehicles in new inventory. A misfire condition may occur due to insufficient fuel volume injection resulting in malfunction indicator light (MIL) illumination. Affected vehicles are not subject to stop sale and are either currently in retailer inventory or assigned and in transit to the retailer. INFINITI requests retailers to remedy all affected inventory vehicles prior to sale to ensure client satisfaction. What Retailers Should Do ***** PLEASE FOLLOW THE ATTACHED REPAIR INSTRUCTIONS: 1. Verify if vehicles are affected by this client satisfaction initiative using Service Comm or DBS National Service History ? Open Campaign I.D. P8315 - New vehicles in retailer inventory can also be identified using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). - Refer to IPSB 15-286 for additional information - Please continue to check newly arriving inventory for campaign applicability. 2. Use the attached procedure to replace the high pressure fuel injectors. - INFINITI has developed an automatic parts shipment to provide affected retailers with enough parts to repair their affected inventory plus any affected INFINITI Courtesy Vehicles (ICV). Parts will begin arriving at retailers by Tuesday, July 24, 2018. 3. The service department should submit the applicable warranty claim for the action performed so it can be closed on Service Comm and release the vehicle. ***** Retailer Responsibility ***** It is the retailer?s responsibility to check Service Comm or DBS National Service History ? Open Campaign using the appropriate campaign I.D for the inspection status on each affected vehicle currently in new vehicle inventory. Thank you for your prompt attention to this matter and we apologize for any inconvenience this may have caused.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Vehicles listed
INFINITI QX502019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
ITB22-0152022-06-03. Service bulletin. SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one or more of the following DTCs are stored in the ECM, do not replace the entire “Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly” (fuel pump assembly). The fuel level sensor can be replaced separately. • P0460 (FUEL LEV SEN SLOSH) • P0461 (FUEL LEVEL SENSOR) • P0462 (FUEL LEVL SEN/CIRC) • P0463 (FUEL LEVL SEN/CIRC) NOTE: Warranty claims referring to fuel level issues that result in the replacement of the entire fuel pump assembly will be charged back.
ITB21-020A2022-05-20. Service bulletin. FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-044J2022-03-12. Service bulletin. EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-0202021-10-13. Service bulletin. FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE IF YOU CONFIRM The client states that a fuel and/or oil smell is present when the vehicle is parked in a closed garage, even though there are no fuel, oil, or EVAP leaks. ACTION Replace the rocker cover assembly and the PCV separator with those listed in the PARTS INFORMATION, and eliminate PCV hose 2. NOTE: PCV hose 2 (number 15 in Figure 1 on page 2) is no longer required with the parts listed in the PARTS NFORMATION.
ITB17-042c2020-10-08. Service bulletin. INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of this bulletin.
ITB19-026a2020-01-08. Service bulletin. 2019 QX50; FUEL ODOR INSIDE VEHICLE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB19-0262019-10-08. Service bulletin. 2019 QX50; FUEL ODOR INSIDE VEHICLE IF YOU CONFIRM A fuel odor inside the vehicle AND There are no visible fuel leaks. ACTION Replace the EVAP canister filter vent hose with the new one listed in the PARTS INFORMATION on the last page of this bulletin.
PARTS UPDATE 2 -2018-10-01. Service bulletin. Fuel Injector Replacement Parts Update 2 ***** Parts Update ***** The purpose of this update is to inform retailers that 14035-5NA0A Intake Manifold Gaskets are no longer on restriction and may be ordered via normal process beginning 8/29/2018. All open SVC orders will be approved and sent to retailers; no need to re-order.
PARTS UPDATE - P2018-10-01. Service bulletin. Fuel Injector Replacement Retailer Inventory ***** Parts Update ***** 100% of retailer inventory parts need was automatically shipped to affected retailers the week of July 23, 2018. The purpose of this update is to inform retailers that 14035-5NA0A Intake Manifold Gaskets are on temporary parts restriction. Intake manifold gaskets may be incorrectly packaged and a PDC stock check is currently in progress to confirm. If necessary, retailers may place a replacement order via DBS as an SVC order type only. Orders will be filled as parts become available on a first in, first out basis. Retailers should ensure that the correct part numbers and quantities are ordered for each VIN. Retailers can refer to IPSB16-384 for specific ordering instructions. As mentioned above, retailers should already have enough parts to repair affected inventory need with the exception of any incorrectly packaged 14035-5NA0A Intake Manifold Gaskets. Any parts necessary for this repair that are not restricted will need to be placed separately via normal ordering process.
P83152018-10-01. Service bulletin. Open Affected Retailer Inventory