2016 Volvo XC90 P017100: prove resonator leakage before replacing a sensor. 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 Volvo original: Supercharger resonator air leakage · Check open recalls by VIN at NHTSA Source date: 2016-04-12; research checked: 2026-11-01.
What prompted this manufacturer document
- MIL and intermittent ECM-P017100
- The journal directs an intake leak check at the supercharger resonator and sealing replacement only when that location is confirmed.
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.
- Volvo XC90 · 2016 · B4204T27; gasoline
- Volvo XC90 · 2016 · Header: B1APHEV/B1BPHEV; service attachment: B4204T28, T35; PHEV
- Header and attachment use different engine identifiers. They are preserved, not silently normalized into confirmed equivalence.
- The original PDF was visually checked on 2026-11-01: the 2016 XC90 has separate B4204T28 and B4204T27 attachment tables. Current VIN fit and part supersession remain unverified.
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 |
|---|---|---|
| P0171 | P017100 | Appears in the document; individual meaning not verified |
What an owner can record safely
- Exact ECM code and intermittent status
- Prior intake work
- Engine identity and production week
Editorial safety boundary for this system
Escalate for flashing MIL, severe roughness, stalling or power loss.
- Use current model-specific service information, calibrated equipment and a qualified technician for the selected diagnostic branch.
- Only non-invasive observations are advised; no flammable spray test or hose disconnection while running.
This is a conservative editorial policy, not a manufacturer safe-to-drive decision for a specific vehicle.
What the source does not prove
- A lean code is not an automatic oxygen-sensor purchase instruction.
- 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
- Which current manufacturer procedure, VIN/RPO/build gate and test result determine the diagnostic branch?
- 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
- Volvo — Supercharger resonator air leakage (TJ 31120) Document: 2016-04-12 · 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.