Andrew's EEC-IV pages
Last modified 09-Apr-00
Projects for the Ford EEC-IV engine control unit
J3 service port
Logic analyser capture of MBUS signals on the J3 service port of an EEC-IV and EEC-V.EECSucka ROM dumper
This dumper copies the EEC's ROM to your PC's hard disk. Complete plans and software are provided for EEC-IV and EEC-V versions. This device DOES NOT make changes to the ROM. It simply extracts a copy of your EEC's ROM for code analysis or use with an extrnal ROM J3 adaptor.Homebrew J3 adaptor
The J3 service port allows connection of an external ROM to over-ride the factory engine calibration contained within the EEC-IV's internal ROM. Here are plans for a hand-wired "J3 adaptor" that squeezes all the decoding logic into a single EPLD. A programming file for the EPLD is provided.J3 service port simulator
This simulator lets your PC control J3 adaptors or other devices designed for attachment to the J3 service port. It's handy for testing home-brew designs or even dumping ROMs from commercial adaptors. A circuit diagram and DOS software including source code are provided.Superchips J3 adaptor schematic
Trace-out of a Superchips J3 adaptor used with an EEC-V. The PCB is marked E2 LSI EEC Rev 2.0. The ROM is a 28F010 FLASH. The RST and PAUSE lines of the J3 connector have been wired to the FLASH's Vpp and WE pins to allow reprogramming via the J3 connector (unplugged from the EEC).Test drive
These EEC-IV equipped vehicles roam the streets here in Perth, Western Australia. Smell that rubber...Useful links:
The EEC-IV mailing list is meeting place for like minded souls. Send an email to: eec-subscribe@eelink.netTom Cloud has produced a comprehensive technical document on the EEC-IV:
http://www.austincc.edu/cloud/efi/eectch98.pdf
