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Old 01-10-2015, 04:33 PM   #1
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Default NB 1.6 2004 ECU pinouts

Hey guys...

hopefully not wrong topic...

Have searched WWW over and out but can not find pinouts of NB series ECU... 2004 build with abs and a/c...

To see if I remove ECU and replace with standalone aftermarket one that my abs and a/c will still work...

If there is any connection between ECU and abs or a/c I will be running piggyback with standalone ECU...

Do I really need to swap out original TPS sensor with aftermarket one? I have read somewhere that aftermartket ECU can not read data from it... Or is it just for MK1?

Everything else is covered... Turbo, IC, oil and water lines, placement, stainless pipes for manifold and stainles 2" pipes for exhaust... also 200 cell cat and flex joint... Only ECU is making a hard time... When I am 100% sure everything fits together the swap starts... Cause its my daily...
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Old 01-10-2015, 05:47 PM   #2
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Originally Posted by Lynx View Post
Hey guys...

hopefully not wrong topic...

Have searched WWW over and out but can not find pinouts of NB series ECU... 2004 build with abs and a/c...

To see if I remove ECU and replace with standalone aftermarket one that my abs and a/c will still work...

If there is any connection between ECU and abs or a/c I will be running piggyback with standalone ECU...

Do I really need to swap out original TPS sensor with aftermarket one? I have read somewhere that aftermartket ECU can not read data from it... Or is it just for MK1?

Everything else is covered... Turbo, IC, oil and water lines, placement, stainless pipes for manifold and stainles 2" pipes for exhaust... also 200 cell cat and flex joint... Only ECU is making a hard time... When I am 100% sure everything fits together the swap starts... Cause its my daily...
You sure didn't search much...
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Old 01-10-2015, 05:49 PM   #3
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You sure didn't search much...
must be the case... can you help me please, cause i dont even know if any of miatas have the same ecu-s...?

I just wanna prepare the bypass connector so i dont need to splice original wireing...
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Old 01-10-2015, 05:52 PM   #4
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You sure didn't search much...
To be fair the NB 1.6 is a bit harder to find.
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Old 01-10-2015, 05:54 PM   #5
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To be fair the NB 1.6 is a bit harder to find.
no kiddn... only 1.8 99-00 are on there... maybe some od 95-99 of 1.6 but none of 04 NB 1.6... or is it just me not recognising it...
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Old 01-10-2015, 06:16 PM   #6
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Here's the wiring diagram for a 2004 (linked). It should note anything that's different for the 1.6L

Brake control is on Pg4

Others more knowledgable than I can comment but I thought the ABS was self-contained so aftermarket ECU wouldn't affect it.

Also, you mentioned "I will be running piggyback with standalone ECU". Which is it?

https://dl.dropboxusercontent.com/u/...20Diagrams.pdf
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Old 01-10-2015, 06:21 PM   #7
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Originally Posted by bahurd View Post
Here's the wiring diagram for a 2004 (linked). It should note anything that's different for the 1.6L

Brake control is on Pg4

Others more knowledgable than I can comment but I thought the ABS was self-contained so aftermarket ECU wouldn't affect it.

Also, you mentioned "I will be running piggyback with standalone ECU". Which is it?

https://dl.dropboxusercontent.com/u/...20Diagrams.pdf
what about aircon and keycode??

ecu masters EMU will either be in piggyback or just by himself havent really decided yet But turbo is TD04 from subaru ordered new one from ebay

mates got on his 4.2 V8 (audi engine) only EMU running marine engine turbo on 4bar (55-60psi)... no problem
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Old 01-10-2015, 06:32 PM   #8
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what about aircon and keycode??

ecu masters EMU will either be in piggyback or just by himself havent really decided yet But turbo is TD04 from subaru ordered new one from ebay

mates got on his 4.2 V8 (audi engine) only EMU running marine engine turbo on 4bar (55-60psi)... no problem
You should probably show your location (UK I assume).

Don't know about ecu masters ECU. MS would handle the A/C. Keycode = immobilizer?? Good luck.
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Old 01-10-2015, 06:32 PM   #9
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damn... VCTS will be a headache... and EGR also... considering dumping EGR (which i dont even know where it is...) but leaving original ECU for VCTS...
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Old 01-10-2015, 06:34 PM   #10
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damn... VCTS will be a headache... and EGR also... considering dumping EGR (which i dont even know where it is...) but leaving original ECU for VCTS...
MS3

Maybe you can PM 'Reverant' at MS Labs.
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Old 01-10-2015, 06:37 PM   #11
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MS3

Maybe you can PM 'Reverant' at MS Labs.
Got some info (dont know if they are true or not...) that MS is prone to beenig unreliable due to beeing a kit you can buy...

But for the ECU masters a few mates that are in that bussines say only the best... I really need a ECU which is reliable (daily use) and that i can go without thinking twice on vacation and back... around 300miles one way...
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Old 01-10-2015, 06:40 PM   #12
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will be making 170-180hp tops... just to give it some life and a bit more torque to overtake sunday drivers...




and to slide around most of all
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Old 01-11-2015, 03:43 AM   #13
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and to slide around most of all
- the perfect beginner post at MT.net, you will probably get a lot of love for that... Gay love...

But back to the topic... The Basic MS3 (and also the MS2) from Reverant is by no means a kit. It's a full bleed ready to run Pnp unit, which is as reliableas you will get any aftermarket ECU.

It's the best bang for buck that you can get out there atm.
There are of course also the DIYautotune PNP units which are also very nice but a bit more expensive...

P.S.: as I have just seen you are in Slovenia - so Reverant aka Dimitris is in Greece, you wouldn't even have a too long waiting time for shipping and allthe customs crap...

Greets
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Old 01-11-2015, 03:48 AM   #14
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Okay... fair point... how much would exactly cost one of this ready to install units??
EMU would cost me around 400 (500)
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Old 01-11-2015, 03:49 AM   #15
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But have in mind that I have VCTS which I have no idea how to wire up to standalone ECU...
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Old 01-11-2015, 05:14 AM   #16
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That is standard with one of Reverants units, guess he will chime in soon.

i just had a look, the ECU masters units cost about 1.200$ (?) - can they handle the Miata's alternator regulation... (I don't think so)


Sven
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Old 01-11-2015, 05:22 AM   #17
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I have a supplyer for that kind of money that i stated...

Wait a minute? Alternator has its own circuit which limits it to 14.4V... it does not got anything to do with ecu... am I right?

I have gone through schematics... and i will leave all as is...
BUT!
Splice the wires going to injectors so ECU wil still "fire" them (wannabe) but instead of ecu the standalone in piggyback will do that job... all other wires and sensors will be fitted with T fittings to original wiring... so the original ECU can still control VCTS an EGR (which acording to schematics i got)... only the injectors will be directly controlled by piggyback ECU...
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Old 01-11-2015, 05:58 AM   #18
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Uuuum okay... i read that if i turbo it... i should remove vcts and leave the plates open all the time or just remove them...
Anyone knows where this sh..t is located?? So i wont have a hard time when doing it... also EGR will go flying out... hopefully my stock ecu will be happy with that
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Old 01-11-2015, 06:15 AM   #19
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1. Alternator is ECU controlled in all of the 99+ Miatae...

2. Don't do piggyback - it sucks.

3. Leave VTCS in (but if I have to be honest, I don't think the 1,6 Miatae even after 99 or 01 do have it...) I have a 99 and it certainly doesn't have it, and I don't think they changed that later on...

4. Remove EGR - it sucks .
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Old 01-11-2015, 08:55 AM   #20
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1. Alternator is ECU controlled in all of the 99+ Miatae...

2. Don't do piggyback - it sucks.

3. Leave VTCS in (but if I have to be honest, I don't think the 1,6 Miatae even after 99 or 01 do have it...) I have a 99 and it certainly doesn't have it, and I don't think they changed that later on...

4. Remove EGR - it sucks .
1. okay i see the diagram now...

2. what will then control the alternator and all connected directly with ecu... will know more when a actually dig further through pages of diagram and its relations to other modules in car

3. where to look if it has it or not? where should it be?

4. EGR goes away with new stainless exhaust in spring when everything comes together...
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