How To: Install Mustang MIL Eliminators

Posted 9/28/2015 by Landan Durham

Turn off that annoying check engine light after installing an off-road X or H pipe on your 1996-2004 Mustang.

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Mustang MIL Eliminators

Keep the MIL light from coming on with a set of MIL eliminators for your 96-04 Mustang or 99-04 Lightning. When installing an off-road H-pipe or X-pipe on 1996-04 V8 Mustangs, or off road mid pipes on 99-04 Lightning trucks the Malfunction Indicator Light or MIL will come on. This indicates that the computer is receiving a code from having no catalytic converters. To give the computer the ideal reading you must install an O2 sensor eliminator.


Required Tools

  • Jack and Jack Stands
  • File or Razor Blade
  • Zip-ties

Installation Instructions

  1. Place the car on a lift or jack stands.
  2. Unplug the rear O2 sensor connections on the driver and passenger side.
  3. The passenger side is plug and play.
  4. One of the driver side locating tabs will need to be trimmed or filed down.
  5. Trim or file down the tab and plug in the driver side O2 connection.
  6. Zip-tie the connections out of the way.
  7. Double check everything, and you're all done.