All about our superior engine management unit.
-
DaRK - Posts:11
- Joined:Tue Sep 29, 2015 2:21 am
ECU Master Assembly
Post
by DaRK » Fri Feb 26, 2016 1:35 am
Hi guys,
I'm assembling ECU on my Swift GTI, and i'm doing the wiring now. But I have a small/huge doubt.
On the manual the pinout shows it's ascending from left to right, so the pin one is on the left and the 8 on the right. But today, I was seeing more carefully to the ECU and seemed to me that I saw some numbers over the pins, but those numbers were ascending from right to the left, and this made me start to wondering if the pin out on the manual it's wrong or the number on the ECU are wrong...
From which should I consider?
Hope anyone can help me.
Thx in advance
- Attachments
-

- manualpinout
-

- frontview
-
roquete - Posts:108
- Joined:Fri Apr 24, 2015 9:08 pm
Post
by roquete » Fri Feb 26, 2016 2:21 am
Pins on manual are correct, looking at the ecu.
The numbers on the plugs are oem for those kind of plug, dont pay attention to them.
-
DaRK - Posts:11
- Joined:Tue Sep 29, 2015 2:21 am
Post
by DaRK » Fri Feb 26, 2016 2:44 am
roquete wrote:Pins on manual are correct, looking at the ecu.
The numbers on the plugs are oem for those kind of plug, dont pay attention to them.
Thx mate. Will do as you say.
once more thx.
-
DaRK - Posts:11
- Joined:Tue Sep 29, 2015 2:21 am
Post
by DaRK » Fri Feb 26, 2016 10:17 pm
I searched, but I miss your topic

-
DaRK - Posts:11
- Joined:Tue Sep 29, 2015 2:21 am
Post
by DaRK » Sat Feb 27, 2016 7:09 pm
Here i'm again boring all of you...
Once my last post , already had a topic similar, now before I ask, I perform a search... but didn't found nothing, don't know if it is good or bad...
Before I start to assemble my ECUMASTER, I had google for diagrams and manual (from other ECU), the more information I can get the less doubt's i'll have... or not...
On the ECU manual, it says to connect the power of the ECU direct to +12V (3amp fuse). Then the main relay will be driven trough ECU.
On other diagrams (motec, megasquirt) it shows the ECU powered up trough the main relay, that is powered on by KEY. (Well too much reading it's making hesitate).
ECU should be powered up trough +12V or Key (relay)???
If I connect trough KEY the ECU will remain the data log when I switch off?
If i connect trough +12V, won't drain my battery after a few weeks?
What's the best option?
I hope this noob questions doesn't walk away anyone. But I prefer to as ask before doing something wrong. I'm from FARO PORTUGAL and here it's difficult to get help or anyone doing this kind of assemble.
Thx in advance.
Regards
-
roquete - Posts:108
- Joined:Fri Apr 24, 2015 9:08 pm
Post
by roquete » Sat Feb 27, 2016 7:16 pm
I wire it through relay on ignition, output of relay powers also ignition coils and injectors but with separate fuses for ign, inj, WB and ecu power.
Im also from portugal.
PM me we can speak portuguese
-
DaRK - Posts:11
- Joined:Tue Sep 29, 2015 2:21 am
Post
by DaRK » Sat Feb 27, 2016 9:21 pm
roquete wrote:I wire it through relay on ignition, output of relay powers also ignition coils and injectors but with separate fuses for ign, inj, WB and ecu power.
Im also from portugal.
PM me we can speak portuguese
thx roquete, i will
thx

-
DaRK - Posts:11
- Joined:Tue Sep 29, 2015 2:21 am
Post
by DaRK » Wed Mar 02, 2016 12:15 am
Workshop day... Me and my baby's
First picture was on Sunday,
the second one today afternoon. Less a few cables to connect
and going
