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P03A7

Cylinder 2 Pressure Variation High

Generic OBD-II

Common symptoms

What you'll notice

Common causes

Most likely first

  1. Faulty spark plug in cylinder 2
  2. Clogged fuel injector in cylinder 2
  3. Vacuum leak in cylinder 2
  4. Faulty ignition coil in cylinder 2
  5. Low compression in cylinder 2

How to diagnose & fix

Work through it in order

  1. Rough idle or hesitation
  2. Misfires or reduced engine power
  3. Increased fuel consumption
  4. Engine vibration or shaking
  5. Poor acceleration.

Related codes

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