What does engine light code. Air injection System flow/psi. Sensor bank 1 : short to ground mean on a 2009 Q5 audi? Or some clue as to what i should check. Thanks.

Asked by peakster Sep 08, 2015 at 06:59 PM about the 2009 Audi Q5 3.2 quattro Premium AWD

Question type: Maintenance & Repair

1 Answer

9,755

Potential causes include: Faulty exhaust manifold check valve A fuse or relay for the secondary air injection pump may be faulty A faulty air pump Leaking vacuum hose A bad vacuum control switch A dislodged a vacuum line A leak in the hoses/piping between the secondary air injection pump and the Combi or secondary air injection A sensor for the secondary air pressure may be faulty The combi valve itself is faulty The secondary air injection port in the cylinder head may be plugged with carbon The secondary air injection ports in the cylinder head may by clogged

2 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Mackenzie Call
    Reputation
    660
  • #2
    GuruXWM46
    Reputation
    580
  • #2
    GuruVVP26
    Reputation
    580
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Audi Q7
19 Great Deals out of 387 listings starting at $6,999
Used BMW X3
58 Great Deals out of 1,150 listings starting at $4,400
Used BMW X5
56 Great Deals out of 979 listings starting at $5,000
Used Audi A4
30 Great Deals out of 644 listings starting at $943
Used Jeep Grand Cherokee
115 Great Deals out of 3,522 listings starting at $4,950
Used Lexus RX
42 Great Deals out of 1,253 listings starting at $4,000
Used Volkswagen Tiguan
85 Great Deals out of 2,767 listings starting at $379
Used Audi A6
6 Great Deals out of 110 listings starting at $5,600
Used Acura MDX
39 Great Deals out of 880 listings starting at $4,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.