# Service bulletin A20\-056

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.

- Type: Service bulletin
- NHTSA id: 10178456
- Published by NHTSA: 2020\-08\-14
- Manufacturer's number: A20\-056
- Manufacturer's date: 2020\-08\-05
- NHTSA component: FUEL SYSTEM, GASOLINE

## NHTSA's summary

Service Bulletin \- The MIL comes on with DTC P2422 \(EVAP canister vent shut valve stuck closed malfunction\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178456-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178456-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Trouble codes named

P2422

## Vehicles listed

- 2016 to 2019 HONDA PILOT

## Recalls for the same vehicles and component

- [2024262](/recalls/tc/2024262.md), 2024-05-06: Fuel System
- [2023679](/recalls/tc/2023679.md), 2023-12-18: Fuel System
- [23V858000](/recalls/nhtsa/23V858000.md), 2023-12-18: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2021182](/recalls/tc/2021182.md), 2021-03-26: Fuel System
- [21V215000](/recalls/nhtsa/21V215000.md), 2021-03-25: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [17V219000](/recalls/nhtsa/17V219000.md), 2017-03-30: FUEL SYSTEM, GASOLINE:STORAGE
- [16V417000](/recalls/nhtsa/16V417000.md), 2016-06-09: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
- [2016278](/recalls/tc/2016278.md), 2016-06-03: Fuel System

## Other bulletins for the same vehicles and component

- [A23\-091](/bulletins/10247623.md), 2023-12-23, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Service Bulletin \- Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 \(Evaporative Emission \(EVAP\) System Purge Flow Malfunction\).
- [A21\-034](/bulletins/10222439.md), 2022-10-05, Service bulletin: FUEL SYSTEM, GASOLINE. Service Bulletin \- \(Repair Procedure Revision\) Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working. If this occurs, the check engine light may be displayed with DTC P0087 \(Fuel Rail Pressure Too Low\) stored, the engine may not start, or the engine could stall while driving, increasing the risk of a crash. Replace the fuel pump motor.
- [A20\-056](/bulletins/10215508.md), 2022-07-07, Service bulletin: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; EQUIPMENT. Service bulletin \- The MIL comes on with DTC P2422 \(EVAP canister vent shut valve stuck closed malfunction\). Dirt may be clogging the EVAP canister vent tube.
- [A20\-056](/bulletins/10211076.md), 2022-05-06, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Service bulletin \- The MIL comes on with DTC P2422 \(EVAP canister vent shut valve stuck closed malfunction\). Dirt may be clogging the EVAP canister vent tube.
- [A20\-056](/bulletins/10208841.md), 2022-03-08, Service bulletin: FUEL SYSTEM, GASOLINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Service Bulletin \- The MIL comes on with DTC P2422 \(EVAP canister vent shut valve stuck closed malfunction\).
- [SB16013](/bulletins/10204273.md), 2021-12-13, Service bulletin: FUEL SYSTEM, GASOLINE. High Pressure Fuel Pump Chirps
- [JW0\-15\-074](/bulletins/10193159.md), 2021-05-13, Service bulletin: FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. During manufacturing, the gauge control module software installed did not meet specification and there are two potential issues: • The gauge control module adds mileage to the odometer when the OFF mode is selected \(Touring and Elite only\). • The gauge control module loses communication with the HDS or may not transfer the odometer mileage and maintenance minder information when replacing the gauge control module. There is one software update that will repair one or both of the issues affecting your vehicle.
- [APaS03302021910](/bulletins/10189894.md), 2021-04-05, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; FUEL SYSTEM, GASOLINE. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2018\-2020 Odysseys, Passports, Pilots \& Ridgelines with a customer complaint of the Malfunction Indicator Light \(MIL\) on with the DTC P0441 \(EVAP System Purge Flow Malfunction\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- [ABOM02112021](/bulletins/10187289.md), 2021-02-18, Service bulletin: FUEL SYSTEM, GASOLINE. Dealer Message \- On, November 24, 2020, American Honda announced a warranty extension for certain 2016 Pilot vehicles. Today, February 11, 2021 American Honda is announcing an expansion to the vehicles covered under this warranty extension. Certain 2018\-19 Odyssey, 2017\-19 Pilot, and 2017\-19 Ridgeline vehicles are being added to this market action. American Honda is extending the warranty coverage of the fuel injectors to 10 years from the original date of purchase or 150,000 miles, whichever comes first.
- [A20\-100](/bulletins/10187006.md), 2021-02-18, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. "Service Bulletin \- The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors. One or more of the following DTCs may be stored: \- P0420 \(rear bank catalyst system efficiency below threshold \[bank 1\]\) \- P0430 \(front bank catalyst system efficiency below threshold \[bank 2\]\) \- P0300\-P0306 \(misfire\) \- P219A \(air\-fuel ratio variation of cylinder \[bank 1, rear bank\]\) \- P219B \(air\-fuel ratio variation of cylinder \[bank 2, front bank\]\) American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000 miles, whichever comes first."

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