P0492 Diagnostic Trouble Code Discussion for September 2016
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| Help Request | Posted | |
| 2011 Audi A8 Quattro 4.2L MIL Lamp on VIN: WAUCVAFD7B P0492: secondary air insufficient flow bank 2. As stated p0492 and p0491, secondary air insufficient flow. I cleared the codes, performed output test of SAI pump, solenoids for combi valves (tested with vacuum as well), vacuum pump on the combi valves with pump running and I can hear and feel air in the ta... |
September 27, 2016 |
