P2108Throttle Actuator A Control Module Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- Engine warning lamp on
- Reduced power or limp mode
- Unstable idle after lifting off the pedal
- Likely causes
- LikelyThrottle closes too slowly (deposits, weak spring)
- PossibleECU software issue needing an update
- RareSupply voltage or ground problem at the ECU
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.