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P0491 BMW -

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I replaced the secondary air pump and the air injection pump but the pump is not coming on. I checked the fuses and I don't see one that is blown. Is there a relay switch that controls the air pump? If so where is it located.

Vehicle: 2000 BMW 740iL

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P0491 and P0492 Secondary air injection system

The fuse for the secondary is F107 it uses a relay listed as X1544 Located in the Fuse relay area of engine compartment

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