P1135 – Intake Valve Timing Control (Bank 2, Nissan)

Description

The ECM detected improper operation of the intake valve timing control system on Bank 2.

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Symptoms

  • Rough idle
  • Poor acceleration
  • Hesitation
  • Reduced power
  • Check engine light

Causes

  • Stuck OCV valve
  • Low or dirty oil
  • Clogged oil passages
  • Timing chain wear

Diagnosis

  • Check oil level
  • Inspect OCV operation
  • Measure oil pressure
  • Scan VVT data
  • Check cam timing

Repair

  • Replace OCV
  • Change oil
  • Clean oil passages
  • Repair cam timing