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The install of the AFC is straightforward procedure, and can be installed by any average mechanic.

Tools:

• Wire Strippers or scissors
  Pliers
  10 mm socket and handle

The AFC unit is accompanied with all the hardware necessary for the install.

• 1 AFC Unit
  2 quick splice wire connects
  1 male bullet style connector
  1 female bullet style connector
  1 square piece of double sided tape
  2 tie straps

Before you begin the install it is a good idea to read through all the applicable information and directions that come with the AFC

The first step or the install is to disconnect the negative terminal from the battery. This ensures that there is no possibility of accidentally shorting any electrical devices.

Next we find the location of the stock Computer. In this install it is in the trunk of the MR2.

We then carefully remove the necessary panel(s) that protects the computer.

For the MR2 it is flat panel, in the trunk, against the wall that separates the trunk from the engine.

There are four plastic interior fasteners across the top of the panel, which secures it in place.

Look over our ECU pinout for all necessary install related wires.



First, locate and extend all the wires coming out of your Super AFC loom. Make sure you leave enough wire to run the loom into the cabin of the MR2. Now locate the RPM wire on your MR2's ECU layout. The wire that provides RPM signal to the ECU is labeled IGF ( or ignitor pinout ) Tap the Green Wire of the SAFC into that wire.



Next locate the ground wire off the ECU. This wire is labeled E1 in our pinout picture. Tap the brown wire CLOSER to the ECU, but leave enough room for another tap on the same wire. Then tap the black wire further down on the same wire. Remember to tap the engine ground with this arrangement. Improper install can lead to problems.



Locate the red wire on the SAFC loom and tap that into the power wire on the ECU, which is labeled + B for the Main EFI Relay. Tap or solder accordingly.



Next locate the A/F Wire, which is labeled VS for Volume Air Flow Meter. Our car is setup for Flapper style of Mass Air meter.



Cut this wire in half, leaving enough space to operate on both ends. Solder or tap the yellow wire into the ECU side of the unit.



Then Solder or tap the White Wire into the harness side of the unit.



Locate the Throttle Wire labeled VTA on our pinout. Tap the gray AFC wire into this wire.



This customer wanted to tap his 02 wire as one of the optional outputs. FYI: We usually dont recommend this. For this function, locate the OX wire on the pinout, and tap the blue AFC wire into that.



You have completed the install of your AFC into your MR2!! Set the Meter type to FLAP, then set the IN / OUT to 2, cylinder type to 4 cylinder and you are ready to tune!