Mazda MX5 - Pre-Facelift non-VVT NB Plug-In ECU

Easy to install. Affordable. Reliable.  
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

Download Manual
Click here to download the user manual.

Click here to download the full Specifications PDF.