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  1. Mechanical Problems & Technical Chat
    Hello, every time I type in stereo or speaker whine I get results about mechanical problems. My problem is that I have an android head unit, a Rockville sub, & infinity Ref series speakers installed. I’m getting whine coming from the speakers, I tried unplugging them the back and the front but...
  2. Mechanical Problems & Technical Chat
    Need an experience tech!!! 09 Civic Si k20z3 No matter what I do, short fuel trim is high at idle, goes down to 0% under load. I’ve replaced spark plugs(denso, just for routine maintenance ), upstream sensor(denso, it was running rich), maf sensor(denso). Car is stock, only think is a...
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