Honda injector-related emissions faults and coverage. See the manufacturer document, vehicle conditions, exclusions and questions for a qualified shop before assuming a repair.
This is a research summary of a manufacturer communication, not a diagnosis for your car, a DIY repair procedure or confirmation of warranty or recall eligibility. No qualified technician has approved a repair for your individual vehicle here.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the American Honda original: Fuel injector warranty-extension owner notification · Check open recalls by VIN at NHTSA Source date: 2021-03; research checked: 2026-11-01.
What prompted this manufacturer document
- Honda notified owners of a fuel-injector warranty extension for qualifying injector-caused faults.
Which vehicle conditions must be checked
Each row below retains its own conditions. Do not combine engines, years or models across rows to create new applications. A listed model is not proof that a particular VIN is affected.
- Honda Pilot · 2017, 2018, 2019
- Honda Ridgeline · 2017, 2018, 2019
- Honda Odyssey · 2018, 2019
- A listed code must actually be caused by the covered injector problem.
- An owner notification alone does not require preventative replacement in a symptom-free vehicle.
Codes recorded in this document
A root listed only as an appearance has no separately verified meaning here. Preserve every suffix and module name; a shared root does not transfer a repair branch to another vehicle.
| Root | Raw form | Meaning in this source, if established |
|---|---|---|
| P219B | P219B | Front-bank (bank 2) cylinder air/fuel imbalance in this Honda application. |
| P219A | P219A | Appears in the document; individual meaning not verified |
| P0420 | P0420 | Appears in the document; individual meaning not verified |
| P0430 | P0430 | Appears in the document; individual meaning not verified |
| P0300 | P0300 | Appears in the document; individual meaning not verified |
| P0301 | P0301 | Appears in the document; individual meaning not verified |
| P0302 | P0302 | Appears in the document; individual meaning not verified |
| P0303 | P0303 | Appears in the document; individual meaning not verified |
| P0304 | P0304 | Appears in the document; individual meaning not verified |
| P0305 | P0305 | Appears in the document; individual meaning not verified |
| P0306 | P0306 | Appears in the document; individual meaning not verified |
What an owner can record safely
- Save codes, mileage and original purchase/in-service information for the dealer.
What the source does not prove
- Do not buy a catalyst or oxygen sensor solely because P0420/P0430 accompanies an injector problem.
- A code or message alone does not establish a failed part, a safe-to-drive decision or an approved repair for this VIN.
- A service bulletin is not automatically a recall or free warranty repair. Confirm current eligibility directly.
Questions for the repair shop
- Is injector failure established, and is the vehicle eligible under 21-010?
- Does a later revision or a current recall change the source's original advice?
- What measurement or inspection confirms the cause, and how will the repair be verified?
Read the original record
The linked communication may be revised after the research date. Compare its document number, exact vehicle table, diagnostic preconditions and exclusions with a qualified technician. This page paraphrases selected facts and does not reproduce the manufacturer procedure.
Sources and scope
- American Honda — Fuel injector warranty-extension owner notification (Owner letter referencing 21-010) Document: 2021-03 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.