Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High Bank 1

Where it lives

For P2078, the sensor sits on the circuit this code reports. The description of P2078 puts it on bank 1.

Check these first

• An open in the bank 1 IMT valve position sensor signal wire
• A short to voltage on the position sensor circuit
• A failed bank 1 IMT valve position sensor
• A poor position sensor ground connection

What to do next

1. Read the bank 1 IMT valve position sensor on a scan tool
2. Test the position sensor signal wire for an open
3. Test the position sensor circuit for a short to voltage
4. Check the position sensor ground connection
5. Replace the bank 1 IMT valve position sensor if the circuit tests good
6. Clear the code and retest

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