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P0009high severityPowertrain

Engine Position System Performance - Bank 2

on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD

What this code means

The computer detects a timing mismatch between crank and cam positions on bank 2. This commonly means the timing chain has stretched or jumped on that bank.

Symptoms

  • Engine misfire
  • Reduced power
  • Check engine light on

Common causes

  • Stretched or worn timing chain
  • Failed chain tensioner
  • Jumped timing
  • Worn cam phaser

Diagnostic steps

  1. Read stored codes
  2. Inspect bank 2 timing chain and tensioner
  3. Verify cam and crank alignment
  4. Check phaser operation and oil supply

Other Powertrain codes on this vehicle

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