Part # 1063070 & 1063072 – Mass Air Kit 22RE

To open a printable PDF version of this instruction CLICK HERE

Tools Needed:

  • General Mechanics Tools
  • Soldering iron and solder
  • A/F mixture meter LCE Part# 1065030
  • Digital Multimeter (Volts & Ohm)
  • Timing light

  • Vacuum/boost gauge
  • Single pole toggle switch
  • 12 Volt inline fuse holder with fuse
  • Computer with serial port or with serial port adapter

Welcome to the first and only product specifically designed and developed to tune your Toyota 22RE engine. Now it is entirely possible to tune your stock or modified engine for maximum power potential through the stock engine management computer in either naturally aspirated or forced induction configurations. Through the use of a Windows based PC computer you now finally have control of your engine’s air to fuel ratio and ignition timing. You will never again have to attempt adjusting the air flow meter. Instead the system utilizes modern digital “Mass Air Flow” technology instead of the antiquated analog “air flow meter” technology.

The system includes a programmable signal calibrator, MAF sensor, aluminum housing and a high quality performance air filter. A personal computer with a standard 9-pin COM port is required and not included. (May not accept a USB serial adapter). Must use COM port 1-9.

Fuel Timing:

The FTC-089 allows for a wide range of fuel injector control. Zero to 20 is the total range of change, with 10 being neutral. The R4 Software provides real time display, but due to the original ECU’s programming protocol you cannot reprogram in “real time”. For convenience it is best to remove the vehicles ECU fuse and temporarily wire a simple 2-pole toggle switch with an in-line fuse holder in place of the original fuse. This provides a convenient way to reset the stock ECU’s programming during each change made. You must reset the ECU for each and every change you make to either the fuel (MAP A) or ignition timing (MAP B) in order to program the calibrator.


Air flow meter to Mass Air Flow Wiring Diagram:

Disconnect Vehicle Battery while working on installation All wire connections must be of good mechanical and electrical quality, Solder and shrink Wrap for the best connection.

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Mass Air Flow Connection Instructions:

Disconnect Vehicle Battery while working on installation All wire connections must be of good mechanical and electrical quality, Solder and shrink Wrap for the best connection.

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Standard Toyota ECU Connections:

Illustrations are views of the top and front of the ECU. These are the most common Toyota ECU connections! If they do not match your ECU exactly, you will need to register with AllData @

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Tuning Suggestions:

A laptop or PC computer with a standard 9-pin COM port is required and not included. If a serial port adapter will be used we recommend ATEN or Radio Shack brand. You must use COM port 1-9. Read the R4 Engine Programming Instructions. This will also allow you to make your tuning changes to your Tune File while saving your original back up tune untouched.

NOTE: "Option Settings" must be set before engine is started and tuning can begin

    1. Launch R4 software

    2. Select file - new customer/name file - back up tune

    3. Select options
      A) System settings/Display Mode - voltage/Application - Programmable signal calibrator B) Engine settings -Cylinder - 4/Engine Type – 4 Stroke
      C) Output settings - out put B mode – over RPM/over RPM - 100 over volt - 0/over INS % - 0
      D) Aux Input Settings needs no changes

    4. Select correct Com port (1-9 Only)

    5. Select connect icon with key switch on and serial cable plugged in (Don’t delay when hooking cable up as it sends data immediately and can lock up a computer)

    6. Read from ECU. Your map should appear now (Do not start tuning!)

    7. Close customer

    8. Select file - New customer - Name Tune File (Example 22R tune file, Save in a location that you can find).

    9. Repeat steps 3 and 6

    10. Refer to check list

Tuning should start at an idle with the engine at operating temp and an AFR range from mid 13’s to low 14’s. Slowly increase RPM and voltage point and tune in small steps. Tune under load only when AFR is adequate at idle to free rev and hard acceleration. Never tune in busy traffic. Tuning recommended only on a chassis dyno or at a safe location or off road. The number entered into the cells on the fuel map, represent voltage the amount that the input voltage is offset (signal modify mode). The number entered in the cell can range from 0.0 to 20.0. The step size mode is 25mV. Example outputs are shown on the following table. The signal modify mode is recommended for most engine management applications.

Fuel Injector Sizing:

Fuel injector’s should only support an additional 10 to 20% H.P than actual H.P requirements. Failure to match injector sizing correctly can cause engine damage or poor drivability.

Ignition Timing:

The FTC controller provides up to 20 degrees of ignition timing retard, for those requiring additional “initial” timing advance you simply increase the initial timing of your choice and then retard the same amount of your increase. For turbo or supercharged applications, you generally are concerned about detonation during boosted conditions.

Example: 5 degrees initial, plus 35 advance equals 40 degree’s of total timing. If you choose to advance your initial timing to 12 degree’s for better performance, you would then need to retard 7 degree’s of ignition timing in MAP B, typically at the 2000 R.P.M. and up cells. This procedure allows for the initial advance increase and maintains the same total advance as original. Your optimum timing curve will depend on you specific engine’s requirements.

Volt Reference Adjustment:

Do to the factory Toyota ECU differences; your FTC Controller has been equipped with an adjustable volt reference range adjuster (located on the end of the FTC Controller by the serial cable plug). The volt reference is the volt signal the FTC Controller sends to the factory ECU. By using the adjuster, this will allow you to keep your fuel map tune in a 0- 20 range perimeter. We recommend setting idle fuel cell values between 2.0 to 6.0 (lower side values on boosted applications).

How to adjust the volt reference:

Attach the volt meter to the blue wire from the FTC Controller and a chassis ground. With your air fuel ratio gauge installed start the engine and let idle to operating temperature (thermostat cycles 3 times). Watch the air fuel ratio gauge for excessive lean condition (16 or higher is to lean). View your fuel cell values at idle, we recommend values between 2.0 – 6.0 Adjust the voltage reference adjustment screw with engine running at idle while viewing your air fuel ratio gauge. Lower voltage richens the mixture/higher voltage leans the mixture. Adjust to obtain an idle air fuel ratio of 13.5 – 14.5 for best idle (depending on engine requirements).


Installation Overview & Checklist

    □ 1. Read full instructions before Installing MAF and wire

    □ 2. Install FTC and wire

    □ 3. Check ALL connectors and wiring order

    □ 4. Connect battery

    □ 5. Install software

    □ 6. Check lap top connection

    □ 7. Set ALL options and perimeters

    □ 8. Read and save from FTC to back up map

    □ 9. Read from FTC

    □ 10. Start engine and begin tuning