DTC P1077 Acura
Intake Manifold Tuning (IMT) Valve Stuck in High RPM Position
Intake Manifold Tuning (IMT) Valve Stuck in High RPM Position
Description
When the PCM sends a close (long runner) command, no long runner return signal is received for at least 7 seconds. Execution is once per drive cycle, engine speed, 3,600 rpm and intake air temperature a minimum of 5 ºF (-15 ºC). NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Poor connections or loose terminals at the IMT actuator and the PCM
Open circuitbetween the PCM and the IMT actuator
Faulty IMT actuator
PCM may need to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P1077
- Brand: Acura