rusefi_documentation/MREAdapter72.md

5.9 KiB

Mazda Miata MX5 NB2 2001-2005 Standalone

microRusEFI should be set for Hall

High-side jumper should be set for +12v.

Some versions of Miata may need a jumper set on the board, See detail here

https://rusefi.com/forum/viewtopic.php?t=1677

https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_2002

https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_2003

https://github.com/rusefi/rusefi/wiki/Hardware/pnp_microRusEfi_nb2/hw72nb.pdf

Pin Number Name microRusEFI pin Type ID Default function
2A Inj 1 #37 Low-Side Injector #1
2B Fan #34 Low-Side Radiator Fan Control Relay Output
2C A/C Fan #43 Low-Side A/C Fan Control Relay Output
2D Inj 2 #38 Low-Side Injector #2
2G Inj 3 #41 Low-Side Injector #3
2J Inj 4 #42 Low-Side Injector #4
2O rusEFI WBO x x
2M Fuel Pump #35 Low-Side Fuel Pump Relay Output
2P IAC Feed 12V Idle Valve Power
2Q IAC Control #3 Low-Side Idle Valve Control
2R MIL #33 Low-Side Check Engine Light output
- - - - -
3A GND #2 Power Ground Ground
3B GND #6 Power Ground Ground
3F Coil #1 #9 High-Side Coil #1 control
3I Coil #2 #11 High-Side Coil #2 control
3H Main Relay #29 Low-Side Main Relay Control
3K rusEFI USB PWR x x
3L rusEFI CAN H x x
3M Alternator #13 High-Side Alternator Control Output
3N rusEFI CAN L x x
3O Tach #14 High-Side Tachometer Output
3V Cam #25 Hall Input Cam shaft Hall Input
3U Alt Warn x x
3Y Crank #45 Hall Input Crank shaft Hall Input
3Z rusEFU USB GND x x
- - - -
4A GND Ground Ground
4D VVT Feed 12V VVT Power
4K rusEFI 5v out #39 5v External MAP sensor power
4L rusEFI 5v out #44 5v Throttle Position Sensor Power
4N IAT #23 AT Intake Air Temperature Sensor
4O GND GND Sensor Ground
4P CLT #18 Temp Input Coolant Temperature Sensor Input
4R VVT #7 Low-side VVT Control
4S Key #5 12V +12v from Ignition Key
4V TPS #26 AV Throttle Position Sensor
4X MAF not routed x x
4AE EGR Boost Sensor AV MAP
4AF Main Relay Power #1 12V +12v from Main Relay

| xx | x | x | x |

x4 AUX low-side drivers

There are 4 low-side drivers available. One is used for the alternator warning light on the dash. The following I/O is available. A jumper wire will need to be routed between the Jx hole on the board and the appropriate pin on the car-side connector.

Board stm32 pin
J3 PB8
J1 PB9
J2 PC12

Extra pins for 353830-5 72 pin:

TE 316836-1 for 20 AWG to 22 AWG

TE 316838-1 for 16 - 18 AWG

Note the latch on OEM ECU plugs while installing add-on pins.

MREAdapter72 0.2 InteractiveBOM

OEM harness add-ons

Board stm32 pin
3L AFR Analog signal for external wide band oxygen controller
4U MAP Manifold absolute pressure analog signal from external sensor
4K +5v +5v feed for MAP sensor
3Z GND Sensor & USB ground

x

Adapter Board Wiring

Connector microRusEFI

SD card wiring

Board stm32 pin
PC10 SD card SPI Clock
PC11 SD card SPI MISO
PC12 SD card SPI MOSI
PB8 SD card SPI Chip Select

Bluetooth/TTL wiring

Board stm32 pin
PC10
PC11

Photos

https://github.com/rusefi/rusefi/wiki/Hardware/pnp_microRusEfi_nb2/MREAdapter72_0_2_front.jpg https://github.com/rusefi/rusefi/wiki/Hardware/pnp_microRusEfi_nb2/MREAdapter72_0_2_back.jpg

https://youtu.be/6IZcHCQl8yo

Case compatibility:

Toyota Camry 89661-3T270

Toyota Camry 89661-06691