18502/P2070/008304
From Ross-Tech Wiki
008304/P2070 - Intake Manifold Tuning Valve (Bank 1): Stuck Open
Possible Symptoms
- Malfunction Indicator Light (MIL) ON
- Reduction of power at higher RPMs
Possible Causes
- Vacuum leak
- Faulty Intake Manifold Tuning (IMT) Valve Position Sensor (G513)
- Intake Manifold Runner binding or sticking
Possible Solutions
- Replace failed vacuum line
- Check Intake Manifold Runner Position Sensor 1 (G336) and wiring, see repair manual.
Special Notes
- When found in 2005 - 2008 Audi A4 and A6 with 3.2L FSI engines, please see TSB 2019485/1 (TSB 24-08-76)