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Idle Problem With B16 In 93 Cx

Discussion in 'General Tech and Maintenance' started by RandomTask76, May 12, 2003.

  1. RandomTask76

    RandomTask76 Junior Member

    Likes Received:
    Apr 6, 2003
    I just swapped a second gen b16 into my buddy's 93 civic hatch cx. It idles fine until you rev it too high then it starts revving real high and then dropping (don't know how high and low cuz it doesn't have a tach). It sounds like a vacuum leak to me, but i can't find one. The only codes it's throwing are a 21 (vtec solenoid) and 41 (o2 sensor) or vice versa. Any suggestions?
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