A few early versions of the EEC-IV used a nonstandard connector. While the EEC-IV adapter board works with most injected Fords from this era, it does not work with all of them. Several features, including the fast idle valve, ignition control, and temperature sensors, are the same on almost all EEC-IV units and do not require jumpers. Since not all Fords use the exact same pinout, you can configure the adapter board using jumper cables to connect the injectors, oxygen sensor(s), relays, and the like. It can control the injectors, PWM fast idle valves, EDIS or TFI ignition, and drive relays and other circuitry as well. The EEC-IV adapter board can work with most of the stock Ford hardware from this era. You will just need to add a MAP sensor line to use Megasquirt’s MAP sensor. The EEC-IV adapter board bolts into an EEC-IV case in place of the original circuitry and connects to the MegaSquirt using a relay cable.
Ford used the EEC-IV ECU from 1983 until 1995 in many of their US-market cars, including the 5.0 Mustang, Thunderbird Turbo Coupe, Merkur XR4Ti, pickup trucks, and countless Escorts, Tauruses, and many others. The EEC-IV adapter board kit allows you to install MegaSquirt into virtually any Ford vehicle that uses an EEC-IV computer, without cutting a single wire. Note – this adapter has been discontinued. I f you haven’t already, please read the ‘disclaimer’ at the top of the parent page here.
