OBD-II code · Powertrain (generic, extended)

P2D16 Exhaust Flow Control Valve C Control Performance

The exhaust flow control valve C reports a control performance condition. Exhaust routing for back-pressure or noise control on this branch cannot be commanded reliably.

Is it safe to drive with P2D16?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelyActuator response slower than calibrated
  • PossibleIncreased friction in valve linkage

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
1–5 h
Emissions test
Likely to fail
Parts involved
Exhaust Flow Control Valve C, Wiring Harness, Ecm

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.