Mazda MX5 - 1600-1800 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 MX5 B6ZE(RS) / BP 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 4 bar or 7 bar MAP sensor 
Knock control not available on this ECU. 
Most factory features are supported. 
Check the features tab for I/O expansion options.
This ECU will need a modification before E-Throttle is usable.

Suitable applications:  

• 1600 1989-1997 NA MX5 
• 1800 1989-1997 NA MX5 
• 1800 323 GTX 
• 1800 323 GTR 

Please note: This ECU does not fit NB, NC, ND models. This unit is only suitable for the 2 plug ECU and not the later 3 plug models). 

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 
SGnd                Sensor Ground Only  
+5V                Low Current +5V Supply 
DI 7                Digital Input 
DI 6                Digital Input 
Volt 5                Analog 0-5V input 
Volt 6                Analog 0-5V input 
Temp4                Temperature sensor input 
Temp3                Temperature sensor input 

Expansion connector 2 
SGnd                Sensor Ground Only  
+5V                Low Current +5V Supply 
Ign 7                Auxiliary Output 
Ign 8                Auxiliary Output 
DI 8                Digital Input 
DI 9                Digital Input 
Volt 9                Analog 0-5V input 
Volt 10                Analog 0-5V input 

Download Manual
Click here to download the user manual.