OBD-II fault code

P003E: A Camshaft Profile Actuator A Control Performance/Stuck Off Bank 2

What it means

The intake cam profile actuator (profile A, bank 2) does not engage when commanded — stays in low-lift profile. Often hydraulic pin sticking or low oil pressure.

At a glance

  • Usually lights the check-engine light
  • Affects emissions; the car can fail an emissions test

How it works

The Bank 2 intake camshaft profile actuator switches that bank's intake valves between lift profiles. The module sets P003E when it commands profile A to engage but Bank 2 stays in the low-lift position, which may result from a sticking oil control valve, debris, or worn parts with excess play.

Common causes

Most likely first.

  1. Oil control valve stuck
  2. Carbon or debris buildup preventing free movement
  3. Component wear with age - mechanical play

Symptoms

  • Check engine light on
  • Power loss especially in mid-rpm range
  • Possible rough idle or stalling
  • Increased fuel consumption

How to diagnose it

  1. Record freeze-frame data and compare commanded and actual Bank 2 profile A status with a scan tool to identify when engagement fails.
  2. Check engine oil level and condition, since the profile actuator relies on the engine's oil supply.
  3. Inspect the Bank 2 profile A oil control valve connector and wiring for damage, contamination, or loose contacts.
  4. Test the Bank 2 oil control valve and circuit using the manufacturer's procedure to confirm that the valve is commanded and responds correctly.
  5. If the electrical and valve checks pass, check oil pressure and inspect the Bank 2 profile mechanism for debris, sticking, or mechanical play.

Common fixes

  • Correct low oil level or unsuitable or overdue oil using the manufacturer's specified oil.
  • Repair damaged wiring or connector contacts at the Bank 2 profile A oil control valve.
  • Clean or replace a sticking Bank 2 oil control valve.
  • Repair or replace worn Bank 2 profile components that prevent engagement.

Can I keep driving?

Gentle driving may be possible if the engine remains stable, but avoid high engine speeds and heavy loads because Bank 2 may lack the intended higher-lift response. Stop if the engine stalls, runs very roughly, or shows an oil-pressure warning.

A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together

This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.

Codes for the same component

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