P0491 Diagnostic Trouble Code Discussion for December 2011
Secondary AIR System Insufficient Flow Detected (Bank 1)
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| Help Request | Posted | |
| 2001 BMW 540i 4.4L MIL Lamp on VIN: WBADN63441 P0491: secondary air injection low flow bank 1. Have this monster here, no secondary air pump operation mitchell says to ck. relay and fuse but gives no locations for fuse #104 or relay. Have located the ebox, not there,fuses above glove box and in trunk not there either. anyone guide me to fuse panel 4 and... |
December 07, 2011 |
