Difference between revisions of "18502/P2070/008304"
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* When found in 2005-2008 Audi A4 and A6 with BKH 3.2L FSI engines: | * When found in 2005-2008 Audi A4 and A6 with BKH 3.2L FSI engines: | ||
| − | ** | + | ** Some vehicles may have a vacuum solenoid (N335 or V63) located under the air filter housing. Failure of this solenoid or the vacuum lines may cause insufficient vacuum and cause [[18438/P2006/008198|P2006]],[[18439/P2007/008199 |P2007]] and [[18502/P2070/008304|P2070]] fault codes. |
| − | + | ** TSB 24-08-76, 01-14-76 or TPI 2019485 has some information on testing for vacuum leaks. | |
| + | ***https://static.nhtsa.gov/odi/tsbs/2014/SB-10065428-2280.pdf NHTSA | ||
* When found in 2012-2016 Audi with 3.0 TFSI, please see TPI 2050329 | * When found in 2012-2016 Audi with 3.0 TFSI, please see TPI 2050329 | ||
Revision as of 09:30, 6 August 2021
18502/P2070/008304 - 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 Tuning (IMT) Valve Position Sensor (G513) and wiring, see repair manual.
Special Notes
- When found in 2005-2008 Audi A4 and A6 with BKH 3.2L FSI engines:
- Some vehicles may have a vacuum solenoid (N335 or V63) located under the air filter housing. Failure of this solenoid or the vacuum lines may cause insufficient vacuum and cause P2006,P2007 and P2070 fault codes.
- TSB 24-08-76, 01-14-76 or TPI 2019485 has some information on testing for vacuum leaks.
- When found in 2012-2016 Audi with 3.0 TFSI, please see TPI 2050329
- Vacuum operated water pump may draw excessive vacuum causing intake manifold flaps to malfunction. Updated vacuum hose for water pump.