MSPNP2 Gen 2 Toyota 93-95 SW20 MR2 & ST185 Celica All-trac / GT-Four 3SGTE

Enhance your 93-95 Toyota SW20 MR2 & ST185 Celica All-Trac (GT-Four) 3S-GTE with the AMP|EFI MSPNP2 Gen 2 Plug & Play ECU – a fully standalone, plug-and-play engine management solution designed for easy installation and maximum performance. This ECU is a great choice for racers seeking a reliable, budget-friendly and capable alternative to the MS3-Pro/MSPNP-Pro Engine Management System for off-road and motorsports applications.

Important: This unit is designed for Manual Transmission Only and does not support Automatic Transmission Control.

Compatibility:

93-95 Toyota SW20 & ST185 3S-GTE MegaSquirtPNP2 Gen 2 ECU Supports:

• 1992-1993 ST185 Toyota Celica All-Trac / GT-Four: 2.0L DOHC Turbo [3S-GTE] (Manual Transmission)
• 1993-1995 USDM SW20 Toyota MR2 Turbo: 2.0L DOHC Turbo [3S-GTE] (Manual Transmission)

Important Compatibility Notes:

• JDM 3rd generation 3S-GTE: Compatible
• 1996-2000 Toyota 4A-GE 20v blacktop: Undocumented

The MegaSquirtPNP Gen 2 is pin-compatible with the 1996-2000 Toyota 4A-GE 20V Blacktop. Some users have successfully installed it using the stock 20v harness, but we do not offer documentation or a base map for these engines. Support for non-standard applications is limited compared to a fully plug-and-play install. Verify compatibility with non-U.S. or non-Canadian Toyota ECUs by checking the part numbers below.

Toyota ECU Part Numbers Replaced by this ECU:

• • 89661-28280
  • 89661-28290
  • 89661-17380
  • 89661-17390
  • 89661-17460
  • 89661-17470

May fit other applications; please feel free to contact us if you’re not sure.

Important Installation Note:

• IAT Sensor Installation Required: Included (1) IAT Sensor & (1) Aluminum Weld-in Bung

Features:

• Fully Plug and Play Installation: No wiring required for basic functionality except for the included air temperature sensor.
  • Average Install Time: Under 1.5 hours!
• 3S-GTE Start-up Map Pre-loaded: Helps your engine start on the first turn of the key
• Real-Time Tuning & Data Logging: Connect via laptop for easy data monitoring
• Supports Most Aftermarket Wideband Sensors: Integrates with popular systems for accurate tuning

Fully Tunable Engine Control:

• 16×16 Fuel Tables: High-resolution tuning for precise fuel control
• 12×12 Ignition Table: Optimize ignition timing for efficient performance tuning with smooth and responsive adjustments
• Multiple Acceleration Enrichment Strategies: Optimizes fuel and timing for acceleration
• Closed Loop Idle Speed Control: Keeps idle stable in varying conditions
• Air Conditioner Control: Manages AC load based on engine performance
• 4 Sequential Fuel Injector Channels: Individual trim tables for each injector channel
• Onboard High Impedance Injector Drivers: Drives modern injectors efficiently
• Allows Removal of Stock Airflow Meter: Offers more flexibility in tuning

Advanced Feature Set:

• 12×12 Air-Fuel Ratio Target Tables: Precise tuning with wideband O2 sensor integration
• Built-in 2-Step Rev Limiter: Configurable RPM management with launch control and flat shift functionality for seamless upshifts
• Real-Time Barometric Correction: Dynamic altitude compensation during engine tuning
• Internal 4-Bar MAP Sensor: Boost pressure monitoring up to 44 PSI for aggressive tuning
• Overboost Protection: Engine safeguarding through continuous boost level monitoring
• Closed Loop Boost Control: Precise boost management with compatible EBC Solenoid Kit
• Table Switching Input: Instant fuel and spark map changes for alternative fuel or nitrous activation
• Flex Fuel Sensor Input: Seamless transitions between E85 and gasoline
• CANBus Connector: Expandable connectivity with MegaSquirt-compatible devices for extended sensor and control integration

What’s in the Box:

• 1993-1995 3S-GTE MR2 / Celica MegaSquirtPNP2 Gen 2 ECU
• M8 Serial Tuning Cable
• 6′ Vacuum Hose for MAP Signal and ‘T’ Fitting
• 26 Pin Connector for Options Port with 6″ Wire Pigtail
• IAT Sensor with Connector and Pins
• Weld-in Aluminum Bung for IAT Sensor
• Tuning Software and Documentation Card
• Four Screws for ECU Mounting