P1128 — Daihatsu — Throttle Valve Stuck

P1128 (Daihatsu): Throttle Valve Stuck — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

The throttle valve cannot reach the desired position, likely due to mechanical obstruction or deposits. Manufacturer-specific definition; confirm applicability in the service information for the exact vehicle.

Affected system: Powertrain