CEL 1264 and fuse #9 blowing

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  • aaron325ix
    E30 Fanatic
    • Jun 2007
    • 1489

    #1

    CEL 1264 and fuse #9 blowing

    Twice in as many days, all of a sudden my check engine light comes on. Stomp test gives me fault code 1264 which is EGO heater.

    Fuse #9 was blown which is labeled as fuel injection electronics. I replaced the fuse and all was fine for a bit. The next day, same thing, CEL on, stomp code 1264, and fuse #9 blown.

    I replaced the o2 sensor about 18 months ago with a mustang sensor.
    Any ideas?
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