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Documented case
Toyota Yaris XP90 — MAF and lean-mixture reports
The qualification and source shown on this page apply to the information below. Suggested reading links do not upgrade its evidence status.
Documentation available; physical cause and repair outcome unconfirmed.
Observation
The public project's author describes a Yaris with a persistent report concerning air measurement. The README mentions P0101 and an idle acquisition associated with P0171; they are not treated here as proof of the same cause.
Available evidence
A case description and a sample file of OBD readings are present. The log's availability documents the context stated by the author, without confirming that a replacement part resolved the issue.
Information limitations
Community documentation, not a manufacturer manual. No confirmed repair outcome, verified event date or country. Vehicle-specific guidance is not generalised to other cars.
Vehicle: Toyota Yaris 2011, 1NR-FE
Event date: unavailable. Event country: unavailable.
System: Engine and cooling; Fuel system
Codes associated in the source: P0101 (IT) · P0171 (IT)
Provenance and reuse
yaris-xp90-repair contributors
Source and version · MIT licence
English translation of an independent Italian summary; procedures, personal data and location details excluded.
Connect SC OBD2 readings with their context. These entries do not demonstrate that the app reads every module or parameter mentioned.
What to observe before drawing conclusions
Keep the exact code and any status shown, the symptoms, and the circumstances in which they appeared. If live readings are available, note their names, values and units. Missing information is not zero and a reading does not by itself confirm a cause.
Use the existing guide to keep the context
Smart Control OBD2 reads available codes and parameters through a compatible adapter. It helps you observe and retain context; it does not automatically identify the cause of a fault. Coverage depends on the vehicle, control unit and adapter.