Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 6, 2003.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
66505-XXXX1994 through 2003 model-year Ford trucks equipped with the 7.3L turbo-diesel engineThe Big Hoss Module plugs into the service port of the Ford ECM and modifies the fuel delivery under heavy load conditions. The module comes with a zener diode which is used at the MAP sensor. The XXXX series in the part no. is the vehicle's stock ECM code.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-161-70
  • Executive Order 161-70 / D161-70
  • ARB # D-161-70
  • Executive Order No: D-161-70
  • C.A.R.B. No. D-161-70
  • Resolution D-161-70
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-161-70 PDF

D-161-70 Document:

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