G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car.  

This ECU fits inside the factory OEM enclosure. Installation is a breeze, with no alteration of the factory wiring loom required for the models listed below. 

Designed for the Pre-Facelift MX5 NB (MY1998-2000, 3 Plug ECU, non-VVT 1.8L Engine)

• Please check your connector matches the header in the listed photo before purchasing.  
• This ECU works for manual transmissions only.  
• Includes onboard 7 bar MAP sensor 
• Most factory features are supported 
• Check the features tab for I/O expansion options

Note: This Plug-in features a new 4 pin powered CAN connector and cannot use the old CANPCB cable for CAN connection. Use the CANJST4 (Link PN 101-0198) cable for connecting CAN devices. This new 4 pin port and cable provide not only the CAN connection, but also a protected 12V power supply and ground for powering the CAN devices. The power supply is protected by a self-resetting fuse rated at 3A continuous.

G4X PlugIn Key Features (where applicable):

• Up to 6D fuel and ignition mapping
• Precision closed loop cam control (four cam, independent control)
• Sequential fuel delivery
• Digital triggering, all OEM patterns
• OEM idle hardware supported
• 5D boost control with three switchable tables
• Motorsport features - antilag, launch, flat shift
• Continuous barometric correction (on board)
• CAN port
• QuickTune - automated fuel tuning
• Individual cylinder correction
• USB tuning cable included
• Stats recording into on-board memory
• Gear compensations for spark, boost and fuel
• Real time selectable dual fuel, ignition and boost maps
• Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
• Boost control referenced to gear, speed or throttle position
• 512 mega bytes data logging memory
• Staged injection
• Knock with "windowing"

I/O Expansion Options:

The following expansion connector inputs/outputs are provided: 

Expansion Connector 1 

• Pin 1                An Temp 4
• Pin 2                An Temp 3
• Pin 3                DI 10
• Pin 4                DI 9 
• Pin 5                DI 8 
• Pin 6                DI 7
• Pin 7                IGN 4
• Pin 8                IGN 3

E-Throttle Connector 

• Pin 1                Ground (signal)
• Pin 2                +5V out
• Pin 3                An Volt 12
• Pin 4                An Volt 11
• Pin 5                An Volt 10
• Pin 6                An Volt 9
• Pin 7                Aux 10
• Pin 8                Aux 9

For full specifications, click here.