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2021 MINI COOPER SE
Electric•FWD•AUTOMATIC•ev
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor318Torque4657Fluid5DTC754Battery1Maintenance0Recalls4
29E3moderate severityPowertrain

Lambda Multiplicative Part-Load Adaptation Limit, Bank 2

on 2021 Mini Cooper SE Electric · FWD

What this code means

The part-load (multiplicative) fuel trim has reached its correction limit on bank 2, indicating a lean mixture (OBD P0174). The ECU cannot compensate for the air/fuel error at load.

Symptoms

  • Hesitation under load
  • Check engine light
  • Reduced power

Common causes

  • Vacuum/intake air leak
  • Faulty MAF sensor
  • Low fuel pressure
  • Dirty or clogged injectors

Diagnostic steps

  1. Read fuel trim values with scan tool
  2. Smoke test intake for leaks
  3. Check fuel pressure under load
  4. Inspect MAF sensor and injectors
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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