P2076Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance (Bank 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- The sensor signal is electrically within its limits, but it does not behave plausibly. GM defines this through the learn routine of the actuator in the 2015 and 2018 tables: if the reported position stays between 5 % and 35 % for 5 s or more while learning, or the learn routine starts ten or more times within a single key cycle, P2076 is stored as Type B after supply voltage of at least 11 V and one second of running. In GM's 2023 and 2024 tables the valve reports its position digitally over SENT, and P2076 flags a faulty or invalid data value from that interface. Hard-to-move flaps, a worn sensor track or a wrong actuator can cause it. It is less specific than P2077/P2078, which detect plain shorts and opens.
- What you may notice
- Check engine light after two trips (GM Type B)
- Actuator audibly cycling at key-on
- Slight power loss in parts of the rev range
- Likely causes
- LikelyFlap binding so that the actuator cannot complete its learn sweep
- PossibleWorn potentiometer track giving jumpy readings
- PossibleDigital (SENT) position message corrupted by wiring or actuator electronics
- RareIncorrect or non-matching replacement actuator
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.