MX5Link MX5NB1X

Description

The MX5NB1X fits inside the factory enclosure and replaces the OEM ECU of the pre-facelift MX-5 NB (MY1998–2000, 3-plug ECU, non-VVT 1.8 engine), with no alteration to the wiring loom.

G4X Plug-In ECUs replace the factory ECU and fit inside the original enclosure, with no alteration to the vehicle wiring loom. All the features of a Link G4X wire-in ECU, with a direct-fit installation.

Important notes

• Before purchasing, check that your factory ECU connector matches the header shown in the photos.
• Manual transmission only.
• Onboard 7 bar MAP sensor.
• Most factory features are supported.
• 4-pin powered CAN connector: use the CANJST4 cable (Link PN 101-0198) to connect CAN devices. The old CANPCB cable is not compatible. The port also provides a protected 12 V supply with a 3 A self-resetting fuse.

Compatible applications

• Pre-facelift Mazda MX-5 NB MY1998–2000, 3-plug ECU, non-VVT 1.8 engine

G4X 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 MB data logging memory
• Staged injection
• Knock control with windowing

I/O expansion

Inputs and outputs available on the expansion connectors, as per Link documentation.

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