Difference between revisions of "P0492"

From Ross-Tech Wiki
(Created page with "__FORCETOC__ == P0492 - Secondary Air Injection System: Bank 2 == === P0492 - Secondary Air Injection System: Bank 2: Insufficient Flow === ==== Possible Symptoms ==== * Ma...")
 
Line 30: Line 30:
 
* When found in the following '''NAR''' (North American Market) Audi models listed below check to see if TPI 2033001 is applicable:
 
* When found in the following '''NAR''' (North American Market) Audi models listed below check to see if TPI 2033001 is applicable:
  
*'''Audi''' TPI 2025633 pertains to [[P0491]] and [[P0492]] stored at same time on the following vehicles with more than 15,000 miles:
+
*'''Audi''' TPI 2033001 pertains to [[P0491]] and [[P0492]] stored at same time on the following vehicles with more than 15,000 miles:
 
** 2010+ S4 and S5 with CCBA 3.0L
 
** 2010+ S4 and S5 with CCBA 3.0L
 
** 2008+ A5, 2009+ A4, 2011 A6 with CALA 3.2L
 
** 2008+ A5, 2009+ A4, 2011 A6 with CALA 3.2L

Revision as of 15:00, 14 September 2015

P0492 - Secondary Air Injection System: Bank 2

P0492 - Secondary Air Injection System: Bank 2: Insufficient Flow

Possible Symptoms

  • Malfunction Indicator Light (MIL) active

Possible Causes

  • Fuse or relay for Secondary Air Injection Pump faulty
  • Hose(s)/Piping between Secondary Air Injection Pump and Combi (Secondary Air Injection) Valve leaking
  • Secondary Air Injection Solenoid(s) faulty
  • Secondary Air Injection Pressure Sensor faulty
  • Combi Valve(s) faulty
  • Secondary Air Injection ports in the cylinder head(s) plugged with carbon See Special Notes

Possible Solutions

  • Check fuse and relay for Secondary Air Injection Pump system.
  • Check hose(s)/Piping between Secondary Air Injection Pump and Combi Valve
  • Check Secondary Air Injection Solenoid(s)
  • Check Secondary Air Injection Pressure Sensor
  • Check Combi Valve(s)
  • Clean Secondary Air Injection ports in the cylinder head(s) if obstructed with carbon See Special Notes

Special Notes

  • When found in the following NAR (North American Market) Audi models listed below check to see if TPI 2033001 is applicable:
  • Audi TPI 2033001 pertains to P0491 and P0492 stored at same time on the following vehicles with more than 15,000 miles:
    • 2010+ S4 and S5 with CCBA 3.0L
    • 2008+ A5, 2009+ A4, 2011 A6 with CALA 3.2L
    • 2009+ A6 CCAA 3.0L Supercharged
    • 2009+ Q5 CALB 3.2L
    • 2011+ Q7 CJWE, CJWC, CJWB 3.0L