Fault codes › P03A6

P03A6

Generic code
Free on OBD DashX

Want real-world data on P03A6?

See which problems come with P03A6, how often it shows up in other vehicles, and how to fix it — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
See P03A6 on OBD DashX No sign-up needed · available in 10 languages

iWhat P03A6 means

  • Cylinder 2 Pressure Variation Low

!Possible symptoms

  • Perform a compression test on cylinder 2 and repair any internal engine damage.
  • Inspect and clean fuel injectors for cylinder 2.
  • Check ignition system components (spark plug, ignition coil, wires) for malfunction and replace if necessary.
  • Verify proper fuel delivery to cylinder 2, including checking the fuel pressure regulator and fuel pump.
  • Check for any vacuum leaks in the intake manifold that may affect cylinder 2 and repair as needed.

?Possible causes

  • Faulty fuel injector in cylinder 2
  • Spark plug malfunction in cylinder 2
  • Low compression in cylinder 2
  • Vacuum leak in the intake system of cylinder 2
  • Faulty ignition coil in cylinder 2

Possible solutions

  • Rough idling or uneven engine running
  • Engine misfires or stumbling on acceleration
  • Lack of power or reduced engine performance
  • Increased fuel consumption
  • Illuminated check engine light
Free on OBD DashX

P03A6 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P03A6 No sign-up needed · available in 10 languages

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.