Home: Mustang Tech: EEC Tech: Build a EEC IV Code Scanner
Build a EEC IV Code Scanner

By Neff Jr, Robert

Summary

Whenever you encounter errors in your EEC IV PCM there are 2 ways to test it, one using the "clip" approach, and the other one using a code scanner.
We will show you how to save some bucks and create your own home-made scanner. Most of the required materials can be bought at your local Radio Shack.

 

Details

Materials needed:

  • 1 DC voltage analog meter measuring 1 to 15 volts dc
  • 2 On-off switches
  • 1 Double row terminal block 6 position
  • 1 Inline fuse holder
  • 1 Fuse 5 amp
  • 3 .25" vinyl insulated tabs
  • 1 Alligator clip
  • 1 Plastic enclosure
  • Various other electrical connectors
Step 1
Install Meter into plastic enclosure
Step 2
Install main power switch and test start switch into plastic enclosure
 
Step 3
Install terminal block inside of the plastic enclosure
Step 4
Wire from side 1 of main power switch to positive side of meter
 
Step 5
Wire from side 2 of main power switch to outside of enclosure and attach fuse holder.
Wire from fuse holder (with sufficient length to reach battery) to the alligator clip
Step 6
Wire from negative side of meter to outside of enclosure with sufficient length to reach test port. Attach .25" insulated tab on end of wire.
 
Step 7
Wire from side 1 of test start switch to outside of enclosure with sufficient length to reach test port. Attach .25" insulated tab on end of wire.

Step 8
Wire from side 2 of test start switch to outside of enclosure with sufficient length to reach test port. Attach .25" insulated tab on end of wire.

The needle on the meter will jump whenever theres a code, each code is represented by 2 digits on Fox bodies and 3 digits for 94-95 SN95s. To distiguish the codes, theres a very small delay between digits and a larger pause between codes.


 

 





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