42 lines
2.6 KiB
Markdown
42 lines
2.6 KiB
Markdown
# 55 pin microRusEFI Adapter
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Looking for a motivated beta tester.
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[Forum thread](https://rusefi.com/forum/viewtopic.php?f=4&t=1668)
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## E30 fitment notes
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pin fixes needed:-
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Pin 6 is marked as fan but is a lowside output, this will work fine for tacho as it is a 12v grounded.
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pin 9 speed sensor needs jumping to pin 29 with the stepper input disabled/left floating.
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pin 15 lambda sensor heat is just a lowside to turn on relay, this should work for CEL
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pin 17 EGR valve is another lowside, this can work with the injectors just fine.
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pin 20 left floating as single coil on E30
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pin 21 left floating as no stepper on E30
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pin 22 is check lamp but icv on E30, should be fine as both are lowsides.
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pin 23 is injectors but lambda heater on e30, should be fine as both are lowsides.
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pin 25 air con relay left floating or jumped to pin 40/41 as appropriate
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pin 26 is a problem, MAF on stepper output - don't know solution at present.
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pin 29 is a problem, VSS input on stepper output - don't know solution at present.
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pin 33 is reserved for a high current output but is cam signal on all others - don't know solution at present.
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pin 32 is extra low side, this should work for fuel rate base on Matt and my checking of fuel rate outputs
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pin 33 left floating or jumped to pin 23
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pin 34 left floating as no inj4 on E30
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pin 35 left floating as no inj3 on E30
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pin 36 is variable intake on January but main relay on E30, might work if both are lowsides?
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pin 38 high side output, no idea if this is correct for transmission output.
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pin 39 normally programming signal, best left floating not connected to high side output for risk of killing other modules.
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pin 40 and pin 42 - not sure what is going on here but this will need work
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pin 43 tacho out but is actually used for AFM/MAF on euro motronics (vauxhall or M30 engine)
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pin 46 left floating on E30 or jumpered to use as relay or fan output
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pin 47 programming voltage, this is crank -ve on E30
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pin 48 crank -v is crank -ve on E30
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pin 49 crank +ve is unused on E30
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pin 50 EGR position is input from ABS for traction intervention, this should be ok as both are signal inputs
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pin 50 power steering request is kickdown on auto E30, might be ok as both are signal inputs
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pin 52 is throttle closed on E30, should work with AN input
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pin 53 is WOT tps signal on E30, should be ok.
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- Note on pin 52/53, early motronic is a 3 position TPS not variable, standard is to convert to a M52 TPS, we could do this conversion on the board as they are a compatible plug
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pin 54 fuel rate output is auto trans lockup on E30, might work if both need lowsides.
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