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black box

492 Views 6 Replies 4 Participants Last post by  GranTouring InjectedVR6
can any of u guys tell me what that black box under the 1992 GTI in the rear by the brake lines is for or what it does??
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Re: black box (Tornado Wolfie)

bad idle is usually associated with a intake leak, check the boots , and all the joints and clamps, i did it , i had a leak and sure enough my idle got better, another problem could lie in the O2 system, and ISV , that you can clean , dont ask me how
i hear everyone talking about, "clean your ISV , blah blah blah i can even find the damn thing
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