I started phase 1 of my motronic diag box today, this is the first mockup of what it will be capable of.
Once complete, the system will be able to read all engine sensors, and report them to a selectable meter/digital readout on a breakout box that will connect to this one. I will also have 2 adapters for connecting to ETA and M10 harnesses.
Phase one features Main Relay Control, Fuel Pump Relay, O2 Heater, Check Engine Light Test, Ground Testing, Constant Power Indication, and Manual Injector Pulsing.
Phase 2 will include the sensor metering, and Phase 3 should have the adapters that I need for testing all 3 configurations, so I should be fully compatible with M42, M10, M20, and perhaps some other engines assuming electrical similarities.
I also plan on building a box that will allow me to connect it in the chain between motor and ECU, to monitor everything in realtime. That will be a complete bitch, however I can appreciate the value in having such a device.
Here are shots of Phase 1, I have not installed the DB25 breakout connector yet as I am still drawing up schematics for that. The final version will include a much nicer label, not one printed on plain paper on my laser printer :)
Anyway, thats it!
Once complete, the system will be able to read all engine sensors, and report them to a selectable meter/digital readout on a breakout box that will connect to this one. I will also have 2 adapters for connecting to ETA and M10 harnesses.
Phase one features Main Relay Control, Fuel Pump Relay, O2 Heater, Check Engine Light Test, Ground Testing, Constant Power Indication, and Manual Injector Pulsing.
Phase 2 will include the sensor metering, and Phase 3 should have the adapters that I need for testing all 3 configurations, so I should be fully compatible with M42, M10, M20, and perhaps some other engines assuming electrical similarities.
I also plan on building a box that will allow me to connect it in the chain between motor and ECU, to monitor everything in realtime. That will be a complete bitch, however I can appreciate the value in having such a device.
Here are shots of Phase 1, I have not installed the DB25 breakout connector yet as I am still drawing up schematics for that. The final version will include a much nicer label, not one printed on plain paper on my laser printer :)
Anyway, thats it!
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