Code result
P2657
A Rocker Arm Actuator System Stuck On Bank 2
Moderate severity
What it means
The rocker arm actuator A on bank 2 stays in the activated state when commanded off.
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
Mechanical lock pin stuck in activated position
highOne of the most commonly reported causes for this code — check this first.
Oil control valve spool stuck open
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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