How It Usually Presents

  • Engine light, sometimes rough running or extended cranking.
  • Can follow recent timing work, sensor replacement, or low oil quality.
  • May be intermittent early on.

Suggested Test Plan

  1. Verify oil level and oil condition first (timing control is oil-pressure dependent).
  2. Check cam and crank sensor wiring/connectors.
  3. Use live data to compare cam/crank sync status where supported.
  4. If symptoms persist, investigate timing components and actuator control.