2004 BMW 545i 4.4L MIL Lamp on
Code coming after 2nd trip air pump works we check flow ok. Also flow air to heads
FIX posted 8/9/2013
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Vehicle Data2004 BMW 545i
Trouble Codes
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Message Closed
Vehicle Data
2004 BMW 545i
VIN | WBANB33564 |
Engine | 4.4 L / 8 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | After a Hot Soak |
Trouble Codes
P0491 | AIR System Performance |