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MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE
MegaSquirtPNP G2 T8590 for the 85-89 Toyota 4AGE and 22RE

MegaSquirtPNP Gen2 T8590 for the 85-89 Toyota 4AGE and 22RE

From: $799.00

Product Quantity

USB to Serial Adapter - Works with TunerStudio! – optional

In stock

In stock

SKU: MSPNP2-T8590 Category: Brand:


MegaSquirtPNP Gen2 – Plug-N-Play Standalone Engine Management System

*Fits several Toyota applications, all USDM with manual transmission:

  • 1985-1987 Toyota Corolla AE86 with 4AGE
  • 1985-1989 Toyota MR2 with 4AGE
  • 1987-1989 Toyota Corolla FWD models with 4AGE
  • 1985-1990 Toyota Pickup or 4Runner with 22RE and 22RTE

Please note that this one does not match the pinout for JDM 4AGE motors with factory MAP sensor.

Second Generation MSPNP; Easy to Use and Install!    

MegaSquirtPNP Model #T8590 Features:

  • Fully Plug and Play Installation – No wiring required for basic functionality.  Average install time is under 1 hour!
  • 4AGE base map is pre-loaded to help your engine start on the first turn of the key (other model base maps included on CD)
  • Real time tuning and data logging with a laptop connection
  • Supports most aftermarket wideband sensors

Fully Tunable Engine Control!

  • 16×16 Fuel Tables allow high resolution tuning
  • 12×12 Ignition Tables
  • Multiple Acceleration enrichment strategies
  • Closed Loop Idle Speed Control
  • Air Conditioner Control
  • Up to 4 sequential fuel injector channels with individual trim tables (minor wiring change required to run sequential, 4AGE only)
  • Onboard peak and hold drivers support both high and low impedance injectors – No external ballast resistor is needed!
  • Allows removal of stock airflow meter

Advanced Feature Set (Included!)

  • 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
  • Built-in 2-step rev limiter / launch control with flat shift
  • Real time barometric correction
  • Internal 4-bar MAP sensor reads up to 44PSI of boost
  • Overboost protection
  • Closed loop boost control (Requires DIYAutoTune.com EBC solenoid kit)
  • Knock sensor input with adjustable sensitivity
  • Headphone output for knock sensor – listen for knock while you tune!
  • Table switching input. Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.
  • Input for flex fuel sensor – switch between E85 and gasoline on the fly!
  • CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors…..the possibilities are limitless!

What you get in the box:

  • MegaSquirtPNP T8590 ECU
  • MSPNP RS232 serial tuning cable, 6′ (USB adapter sold separately, if needed)
  • Tuning Software and Documentation USB Stick
  • 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
  • Four Screws for ECU mounting

Note: Although there is a paid upgrade to TunerStudio, it is not needed to tune this ECU. The free version included on the USB Stick can access all the features and tables of the MegaSquirtPNP. The paid version of TunerStudio simply adds tuning and analysis software, such as VE Analyzer Live to tune the fuel tables based on wideband O2 feedback (requiring a wideband O2 sensor and controller, sold separately).

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Where is this product assembled?

  • This product is assembled in Suwanee, Georgia, USA

Will this plug into my 4AGZE swap in my AE86?

  • The 4AGZE engine harness uses a different connector and will not plug in.

Is this all that I need to get started tuning my 4AGE?

  • The only other potential must-have is that if your laptop doesn't have a 9 pin serial port, you will need our USB to serial adapter to connect to this unit. However, there are several other things you may wish to add to use this unit to its full potential.

What about the JDM 4AGE that used a MAP sensor?

  • Not only is the ECU pinout different, but these cars also used a different ignition system. Putting this MSPNP on one of those engines would require both repinning the harness and swapping to the USDM ignition module.

What about 20V swaps?

  • If you are using the 20V motor with the 16V wiring harness and ignition, this could work. It will not plug into a 20V harness. The '96-'00 "Blacktop" wiring harness is very similar to the harness our '93-'95 3S-GTE plug and play works with, but we have not been able to test this application in house.

Questions & Answers

  1. 0 votes

    Only if it is being used with the 4A-GE naturally aspirated ignition and wiring harness. The 4A-GZE ECU uses a different ignition system, and the ECU connector is different as well.

  2. 0 votes

    This is not an application we have been able to get a wiring diagram for - if you can send us a diagram, we can check if this works.

  3. 0 votes

    For US market models, this one fits 1987 through 1989 AE92 models but does not fit AE92s from the 1990 or later model years. We have not been able to confirm compatibility with all JDM versions. At this point, we know it does not fit factory supercharged (4A-GZE) models. It also is known not to be compatible with units that used a MAP sensor and no air flow meter. If the engine has a vane type air flow meter and not a MAP sensor, the car was made before the 1990 model year, and has the same 42 pin connector shown, it will probably fit, but we have not been able to confirm this.

  4. 0 votes

    You'd need a complete 1990 and earlier wiring harness, and possibly the earlier distributor - the later wiring is completely different. A 1990 or earlier ECU usually won't even physically plug into '91 and later wiring. The later trucks also had several different ECU variants depending on drivetrain and transmission.

  5. 0 votes

    Yes, it supports both the naturally aspirated and factory turbo versions of the 22RE for the year range listed.

  6. 0 votes

    This unit is set up to work with a factory wiring harness. We currently do not sell the wiring harness itself.

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