4g15 ecu pinout help

Josh34

Josh34

Member
Hey guys
Just after a diagram or list of what each ecu pinout does so I can hook in a piggy back ecu I got into my turbo 4g15 Mirage
Cheers
P.s I already have the bible and it doesn't say what I want to know
 
Josh34 said:
Hey guys
Just after a diagram or list of what each ecu pinout does so I can hook in a piggy back ecu I got into my turbo 4g15 Mirage
Cheers
P.s I already have the bible and it doesn't say what I want to know
Click to expand...
What do you want to know, the bible has almost all of it anyway.
What wire are you chasing?
 
I'm after the wires so I can wire in the piggy back ecu I got. (See photo attached)
Had a look in the bible and i couldn't see anything I needed and or it didn't tell
Me what I wanted to know
 

Attachments

  • IMG_1552.JPG
    IMG_1552.JPG
    38 KB · Views: 57
Bump. For anyone that can't see the picture
The piggy back needs
-12v +
Ground
Ignition timing in
Ignition timing out
Tps signal
Fuel control in
Fuel control out

That's it and that's the only information I can find for this piggy back ecu I got
Any help is appreciated
Cheers
 
diagrams 1 & 2 on pp277-8 seem like they're trying to have this information, but i'm struggling to nail down details too. like i can see the tps sensor for example, but there's four wires from it and they're numbered 1-4 but not labelled, so nfi which carries the signal. maybe this stuff is more obvious if you're used to reading car wiring diagrams?
 
I got the 12v, the ground and the tps correct I assume
And I've wired the ignition in and out in as well
And the fuel control in and out.
Just tried to start it and it wouldn't have a bar of it
So I'm assuming I've done ignition and fuel control wrong some how
 
Seeing the wires you state are required for the piggyback i can tell you know that this piggyback should be avoided.
Save yourself the disappointment and get a better ecu from the start.
In this day and age no good tuner will recommend a piggyback or let alone both chasing a dogs tail to tune one on a car with a map sensor not meant for boost.
It might be satisfactory for light retune but you do not have good control to go whole hog, change injectors, map everything to suit, have fuel trims within check, tuning for boost which the standard setup which is not designed to to map boost.
The standard ecu only will allow an extra column of mapping just for elevelation change. You cannot map a proper tune.
 
You must log in or register to reply here.
Back
Top