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 Sep 08, 2015 at 06:59 PM about the 2009 Audi Q5 3.2 Quattro Premium

Question type: Maintenance & Repair

1 Answer

3,165

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

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Audi Q5 Questions

Audi Q5 Experts

#1 cliffordcousa
cliffordcousa
Reputation 30
#2 Richard Schroer
Richard Schroer
Reputation 10
#2 schalk
schalk
Reputation 10
View All

Related Models For Sale

Used Audi Q7
96 Great Deals out of 4,009 listings starting at $6,300
Used BMW X5
428 Great Deals out of 15,261 listings starting at $2,950
Used BMW X3
307 Great Deals out of 13,088 listings starting at $2,950
Used Audi A4
261 Great Deals out of 11,462 listings starting at $800
Used Lexus RX 350
500 Great Deals out of 19,430 listings starting at $3,997
Used Jeep Grand Cherokee
843 Great Deals out of 68,691 listings starting at $864
Used Audi A6
138 Great Deals out of 7,357 listings starting at $2,495
Used Acura MDX
314 Great Deals out of 17,200 listings starting at $1,200
Used Acura RDX
152 Great Deals out of 14,430 listings starting at $5,900
Used Mercedes-Benz M-Class
199 Great Deals out of 5,510 listings starting at $1,395
Used Porsche Cayenne
86 Great Deals out of 5,681 listings starting at $3,999
Used Mercedes-Benz GLK-Class
137 Great Deals out of 3,020 listings starting at $10,402
Used Audi A5
100 Great Deals out of 2,600 listings starting at $8,900

Used Cars For Sale

2017 Audi Q5 For Sale
7 Great Deals out of 5,605 listings starting at $35,797
2016 Audi Q5 For Sale
32 Great Deals out of 1,085 listings starting at $27,977
2015 Audi Q5 For Sale
12 Great Deals out of 453 listings starting at $24,990
2014 Audi Q5 For Sale
26 Great Deals out of 696 listings starting at $16,500