152 lines
6.4 KiB
Markdown
152 lines
6.4 KiB
Markdown
# 72 pin microRusEFI Adapter
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```diff
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-While MREAdapter72 is still functional and supported there are very few of those in the wild
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```
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Miata stuff has evolved to Hellen offerings
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Mazda Miata MX5 NB2 2001-2005 Standalone
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[microRusEFI](Hardware-microRusEFI) should be set for Hall
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High-side jumper should be set for +12v.
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[Some versions of Miata may need a jumper set on the board, See detail here](PNP-72-Jumpers)
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[MREAdapter72 pnp Miata MX5 NB2](https://rusefi.com/forum/viewtopic.php?t=1677)
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[Mazda Miata 2002](Mazda-Miata-2002)
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[Mazda Miata 2003](Mazda-Miata-2003)
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[MREAdapter72 0.2 InteractiveBOM](https://rusefi.com/docs/ibom/hw72nb_0.2.html)
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[https://github.com/rusefi/rusefi_documentation/blob/master/Hardware/pnp_microRusEFI_nb2/hw72nb.pdf]
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| Pin Number | Name | microRusEFI pin | Type ID | Default function |
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| ----------:|:-------- | ------------ | ------------ |:---------------------------------------------------- |
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| 2A | Inj 1 |#37| Low-Side | Injector #1 |
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| 2B | Fan |#34| Low-Side | Radiator Fan Control Relay Output |
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| 2C | A/C Fan |#43| Low-Side | A/C Fan Control Relay Output |
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| 2D | Inj 2 |#38| Low-Side | Injector #2 |
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| 2G | Inj 3 |#41| Low-Side | Injector #3 |
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| 2J | Inj 4 |#42| Low-Side | Injector #4 |
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| 2O | rusEFI WBO | | x | x |
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| 2M | Fuel Pump |#35| Low-Side | Fuel Pump Relay Output |
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| 2P | IAC Feed | | 12V | Idle Valve Power |
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| 2Q | IAC Control | #3| Low-Side | Idle Valve Control |
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| 2R | MIL |#33| Low-Side | Check Engine Light output |
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| - | - | - | - | - |
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| 3A | GND | #2| Power Ground | Ground |
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| 3B | GND | #6| Power Ground | Ground |
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| 3F | Coil #1 | #9| High-Side | Coil #1 control |
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| 3I | Coil #2 |#11| High-Side | Coil #2 control |
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| 3H | Main Relay |#29| Low-Side | Main Relay Control |
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| 3K | rusEFI USB PWR | | x | x |
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| 3L | rusEFI CAN H | | x | x |
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| 3M | Alternator |#13| High-Side | Alternator Control Output |
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| 3N | rusEFI CAN L | | x | x |
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| 3O | Tach |#14| High-Side | Tachometer Output |
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| 3V | Cam |#25| Hall Input | Cam shaft Hall Input |
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| 3U | Alt Warn | | x | x |
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| 3Y | Crank |#45| Hall Input | Crank shaft Hall Input |
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| 3Z | rusEFU USB GND | | x | x |
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| - | - | | - | - |
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| 4A | GND | | Ground | Ground |
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| 4D | VVT Feed | | 12V | VVT Power |
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| 4K | rusEFI 5v out |#39| 5v | External MAP sensor power |
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| 4L | rusEFI 5v out |#44| 5v | Throttle Position Sensor Power |
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| 4N | IAT |#23| AT | Intake Air Temperature Sensor |
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| 4O | GND | | GND | Sensor Ground |
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| 4P | CLT |#18| Temp Input | Coolant Temperature Sensor Input |
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| 4R | VVT | #7| Low-side | VVT Control |
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| 4S | Key | #5| 12V | +12v from Ignition Key |
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| 4V | TPS |#26| AV | Throttle Position Sensor |
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| 4X | MAF not routed | | x | x |
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| 4AE | EGR Boost Sensor| | AV | MAP |
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| 4AF | Main Relay Power| #1| 12V | +12v from Main Relay |
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## x4 AUX low-side drivers
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There are 4 low-side drivers available. One is used for the alternator warning light on the dash.
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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.
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| Board | stm32 pin |
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|---------|------------|
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| J3 | PB8 |
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| J1 | PB9 |
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| J2 | PC12 |
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Extra pins for [353830-5 72 pin](OEM-connectors#72-pin):
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TE 316836-1 for 20 AWG to 22 AWG
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TE 316838-1 for 16 - 18 AWG
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Note the [latch on OEM ECU](installations/MazdaMiataNB2_Frankenso/nb2_ecu_plugs_latch.jpg) plugs while installing add-on pins.
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## AV8
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In order to use this output as an analogue input requires the removal of the LED.
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---
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## OEM harness add-ons
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The OEM ECU connector uses AMP Multilock .040 and .070 pins.
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| Board | stm32 pin | |
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|-----|---|---|
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| 3L | AFR | Analog signal for external wide band oxygen controller |
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| 4U | MAP| Manifold absolute pressure analog signal from [external sensor](GM-map-sensor) |
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| 4K | +5v | +5v feed for MAP sensor |
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| 3Z | GND | Sensor & USB ground |
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The NB2 OEM connectors are notoriously hard to depin. The link below is for a very useful guide.
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[How to pin and depin a subaru connector](https://www.iwireservices.com/post/2018/08/02/how-to-pin-and-depin-a-subaru-connector)
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---
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## Adapter Board Wiring
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| Connector | microRusEFI | |
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|---|---|---|
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| | | |
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---
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## SD card wiring
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| Board | stm32 pin | |
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|---|---|---|
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| | PC10 | SD card SPI Clock |
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| | PC11 | SD card SPI MISO |
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| | PC12 | SD card SPI MOSI |
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| | PB8 | SD card SPI Chip Select |
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---
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## Bluetooth/TTL wiring
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| Board | stm32 pin | |
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| | PC10 | |
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| | PC11 | |
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---
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## Photos
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![Hardware/pnp_microRusEFI_nb2/MREAdapter72_0_2_front.jpg]
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![Hardware/pnp_microRusEFI_nb2/MREAdapter72_0_2_back.jpg]
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[MREAdapter72 rusEfi Miata NB2 pnp standalone](https://youtu.be/6IZcHCQl8yo)
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Case compatibility:
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Toyota Camry 89661-3T270
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Toyota Camry 89661-06691
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