Powertrain, generic (extended)

P2108 Throttle Actuator A Control Module Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2108 marks a performance problem of the control function for throttle A, as opposed to a pure processor fault (P2107). VW's 2014 Touareg data book gives a concrete case: the time for the throttle to close below a reference point of 11.56 percent must not exceed 0.60 s. Ford's 2024-2025 summary uses P2108 as the base code for its throttle processor test, so P2107 there appears as P2108 with failure-type byte 49 (60 ms, MIL). Usage therefore differs by maker. Check the throttle body for deposits and the ECU for software updates, then supply and grounds. Symptoms range from a warning lamp to reduced power. The B counterpart is P211F; mechanical return problems also show up as P2119.

Likely causes

Throttle closes too slowly (deposits, weak spring)
ECU software issue needing an update
Supply voltage or ground problem at the ECU

Symptoms

  • Engine warning lamp on
  • Reduced power or limp mode
  • Unstable idle after lifting off the pedal

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–1,200
Time0.5–3 h

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

Parts involved

ecm

Related codes

P2107P211FP2119P2101P0606

References: static.nhtsa.gov, fordservicecontent.com, law.cornell.edu.