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Old 29-12-14, 05:08 PM   #1
adam
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Emerald ecu to mems3 pin layout

Bit of a long shot but wondered if anyone would know....converting my ecu to an Emerald M3DK at the weekend and planning in advance to get it done as quickly as possible. I've only done mems2j vvc to Emerald in the past and can't remember what I did with the screened wires for the O2 sensor and Crank sensor, mems pins 28 and 17 respectively.

I don't suppose anyone knows the corresponding Emerald pins for these?

If all else fails I'll just look at what I did with the track BRM or MGB when I'm at the unit but would have liked to be prepared.
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Old 29-12-14, 05:51 PM   #2
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In case anyone is remotely interested and for the sake of documentation, here is what I've come up with.....let me know if you see any glaring errors!,

Mems3 pin - Emerald pin:wire colour:use
40-1:YN:injector driver 4
39-2:OG:IACV channel 2
50-3:KU:IACV channel 1
54-4:WK:main relay control
52-5:WO:ignition driver 2
67-6:Y:cooling fan relay control
15-7:Y:oxygen sensor signal input
20-8:GY:throttle pot signal input
46-9:KP:throttle pot supply
Na-10::aux output 1
61-11:GK:ignition sense input
55-12:U:tacho output signal
72-13:BW:immobiliser input
Na-14::+8v out
Na-15::cam phase or custom input
44-16:YW:air temp signal input
Na-17::aux output 2
41-18:G:oxygen sensor signal earth
Na-19::shift light driver
68-20:BP:fuel pump relay driver
Na-21:: purge valve/aux output 3
13-22:OS:IACV channel 3
51-23:YG:injector driver 2
25-24:YU:injector driver 1
26-25:WB:ignition driver 1
14-26:YR:injector driver 3
24-27:OU:IACV channel 4
80 (poss also 19)-28:N:+12v ignition supply
56/59/66/73-29:B:ecu earth
7/18/31/34-30:KB:sensor earth
4-31:UP:main trigger signal input
30-32:WU:main trigger sensor earth
33-33:KG:coolant temp signal input
Na-34::aux analogue input 1
Na-35::aux analogue input 2
1-36:BU:oxygen sensor heater relay driver
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Last edited by adam; 30-12-14 at 08:00 AM.
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Old 29-12-14, 07:58 PM   #3
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Nothing jumps out but I don't have access to the wiring diagrams.
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Old 29-12-14, 08:02 PM   #4
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Trying to remember what I did withy them, I think just ran to earth so will have to double check on the BRM.
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