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  1. K

    4l80e tach signal

    This post is a little old, but hoping I get a response! I’m installing a Sniper 2 system with a Hyperspark ignition this weekend on my 1993 C3500. I planned on using the TPS and tach output from my sniper as an input to my OE PCM so I can continue to use it as a trans controller. It looks as...
  2. K

    0411 PCMS + Connectors & Mounting trays

    what is the mounting tray sourced from?
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