» View Question
arturo

arturo 5/12/2010

2004 BMW 545i Base 8 Cyl 4.4L

Engine

bmw 545i obd codes p0491 & p0492

1 Answer


Bob R.

Bob R. 5/12/2010

This is usually the Air pump or air pump valves - Since your car is a V-8, you may have two valves, I'm not sure.
BAVAUTO.com would probably know.
P0491 Secondary Air Injection System (Bank 1)
P0492 Secondary Air Injection System (Bank 2)

See my answers to your question on replacing the air pump

Reply
0

Answer this question

( characters left)

Follow Question

what's this?
advertisement
advertisement