Powertrain, generic (extended)

P26FE Exhaust Flow Control Valve A Control Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P26FE concerns the electrically driven exhaust flap A on models with selectable exhaust sound. The circuit is fine, but the flap does not reach the commanded position. Ford's OBD summaries 2020–2024 assign it to bank 1 and use two checks: the flap's smart driver reports a stuck valve over its PWM line, and a rationality test compares measured with commanded position, with a duration that depends on ambient conditions. Ford bulletins 17-2063 and 17-2217 (Focus RS 2016–2017) trace it to a valve freezing below 0 °C and fix it with new PCM software; 23-2132 (Mustang 2018–2023) blames a badly seated exhaust; 25-2144 (F-150 5.2 L, 2023–2025) requires PCM update and actuator alignment. Drivers see a lit MIL and a message that exhaust or drive mode is unavailable; bank 2 uses P2BFB.

Likely causes

Flap sticking from corrosion, soot or freezing moisture
Exhaust or actuator bracket not seated correctly
Actuator not aligned after replacement or outdated PCM software
Worn or failed flap actuator

Symptoms

  • Check engine light on
  • Message that exhaust or drive mode is not available
  • No audible change in exhaust sound between modes

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–900
Time0.3–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

exhaust flow valve aactuator

Related codes

P26C5P26C6P26C7P2BFB

References: fordservicecontent.com, fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov.