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1997 BMW 328IS E36
2.8L I6 M52•RWD•AUTOMATIC•gas
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Repairs0Labor496Torque2179Fluid8DTC1203Battery1Maintenance0Recalls0
P2628moderate severityPowertrain

O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 1

on 1997 BMW 328is E36 2.8L I6 M52 · RWD

What this code means

High current in wideband O2 sensor trim circuit bank 1.

Symptoms

  • Check engine light
  • Lean running condition

Common causes

  • Open circuit
  • Failed sensor
  • Short to voltage

Diagnostic steps

  1. Measure circuit current
  2. Check for opens

Repair notes

Replace sensor or repair wiring.

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