Error code
OBD2 P2078
OBD2P2078
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High.
Severity
moderateCan be driven, but performance issues may occur.
Summary
P2078 indicates that the Intake Manifold Tuning (IMT) Valve Position Sensor/Switch circuit has an abnormally high voltage, likely due to a wiring issue near the sensor.
Common Causes
- Wiring short to positive
- Faulty IMT valve position sensor/switch
Fixes
- Replace the faulty IMT valve position sensor/switch.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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