Code result

P0029

Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2

Moderate severity

What it means

The ECU detects that the exhaust camshaft oil control valve on bank 2 does not respond to commanded duty cycle within expected limits. Camshaft phase deviates from target during phaser actuation tests.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Oil control valve clogged with sludge

    high

    One of the most commonly reported causes for this code — check this first.

  • Low oil pressure or wrong oil viscosity

    medium

    A plausible cause — test and verify before replacing parts.

  • Camshaft phaser worn

    medium

    A plausible cause — test and verify before replacing parts.

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