6 cylinder sequential injection setup?

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Sworddylan
Posts:2
Joined:Thu Aug 20, 2015 6:54 am
6 cylinder sequential injection setup?

Post by Sworddylan » Mon Aug 24, 2015 4:11 pm

Hello all, Could anyone tell me how the settings need to be set for sequential injection on a 6 cylinder? I'm working on a 7mgte in a supra, trying to get it fired up. I was sent the base map for a stock 7m, which is batch fired injection, but the harness was rebuilt to run sequential injection. I am not sure how the injection settings need to be setup and I can't seem to find an answer to it. Any help would be awesome.

derOJ
Posts:72
Joined:Mon Mar 16, 2015 6:30 pm

Re: 6 cylinder sequential injection setup?

Post by derOJ » Mon Aug 24, 2015 9:32 pm

Wich ignition order do you have?
usually 1 - 5 - 3 - 6 - 2 - 4

so if you want to inject when inlet valve is closed you have to know at which crankshaft angle it is closed.

on a 6 cyl the ignition events occur every 120 degrees of crankshaft rotation. so in EMU one injection event is bounded to one ignition event.
that means you can inject in 120 degree "steps" before top dead center of every cylinder

But keep in mind that ignition events are different to firing order! for example ignition event 2 is not cylinder 2, but cylinder 5 ( when firing order is as mentioned above)

Think about it and try, or just search this forum for the settings :P
but thinking and doing yourself is better for understanding and learning :mrgreen:

RHD
Posts:537
Joined:Tue Oct 07, 2014 4:28 pm

Re: 6 cylinder sequential injection setup?

Post by RHD » Tue Aug 25, 2015 5:54 am

Injection settings wont usually stop it from running unless the injectors are not assigned or connected at all so it sounds like you have problems with your ignition or trigger settings

jbrito
Posts:12
Joined:Wed Aug 26, 2015 4:26 pm

Re: 6 cylinder sequential injection setup?

Post by jbrito » Sun Sep 06, 2015 6:37 pm

So what wold be a perfect sequential injection, squirt when the valve is open or advance the squirt when is still closed?

This is my setup right now

Ignition Event #1 -> Cilinder #1 (G8)
Ignition Event #2 -> Cilinder #5 (B8)
Ignition Event #3 -> Cilinder #3 (G9)
Ignition Event #4 -> Cilinder #6 (G1)
Ignition Event #5 -> Cilinder #2 (G16)
Ignition Event #6 -> Cilinder #4 (B16)

Injector 1 Phase -> Ignition Event #1
Injector 2 Phase -> Ignition Event #5
Injector 3 Phase -> Ignition Event #3
Injector 4 Phase -> Ignition Event #6
Injector 5 Phase -> Ignition Event #2
Injector 6 Phase -> Ignition Event #4

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