Ahhh! Please help me! 2JZGE N-AT 1996 SC300

EMU BLACK / CLASSIC
1

Hello guys!

My dad and I are having a lot of trouble on tuning my project car. We seriously couldn’t get the thing to start up or sputter at all. The most we got were some backfires and halfhearted chugs every now and then when we had it running with batch all injectors. But anything else? Nada.

I was hoping anyone here has any experience or input to get this thing running. Its so close to running I can practically smell it! (Literally the whole garage full of gas smell)
Dad and I are going solely off of our own knowledge, forums, and manuals but no luck

What injector phase would be needed?

Any help is appreciated!!!

Important things to note:

We get test outputs for all injectors, and only coil 1,2,3 but not 4,5,6 (is that normal?)

I have the 36-2 crank gear but one of the crank position sensor wires are shorted so we’re running the primary trigger on the dizzy gear instead.
Is 24 teeth the correct setting on the primary trigger for that gear, we counted 24teeth but on scope we only get 24 ticks instead of 48 between cam signals (is that also normal?), however I do have base timing set on 10deg BTDC

Its a 1996 SC300 with:

  • 2JZGE NON-VVTI
  • Distributor to VVTI wasted spark coils
  • CX-RACING turbo kit on it
  • Walbro 450 fuel pump (not installed yet)
  • Stock 1996 2JZGE injectors
    Thanks everyone!!!

I can’t attach files just yet because I am a new user but I’ll do my best to describe anything to anyone until I can and provide these links below

[SCOPE]
(upload://z2wxHJUgr8imUEmaCvaZIaZz3US.png)

[LOG]
(upload://23x1r5zfR243bJq0LfwdwNPJfkS.png)

[Logs tab]
(upload://kn25hBf4OErwQkqPoqwm99CwNQO.png)

[Cranking tab]
(upload://vyEinQO30rHewSPOLiPAh6sAbJY.png)

[Triggers tab]
(upload://hJ13nFvPZZUgIIn9LpMq02Kgykz.png)

[Ignition tab]
(upload://gHZJSfbYIwgKG6qVWMqfBfmislE.png)

[Fuel tab]
(upload://t8nh29Fb5cKx4cuj9kmpHHkX0ZQ.png)

[Idle tab]
(upload://y7HafSCMHZkAQsNjKkL9JpZBEpU.png)

[Boost tab]
(upload://usrBC49xU6IM5bGxce6YhSq00EA.png)

[Outputs tab]
(upload://7pV3y0IiogBcDdPOu4Y9eU5yFcM.png)

2

Photos did not work; lets just get your post count up so you can post the whole log and tune files.

VVTI JZ’s are all waste spark, so yes only the 1,2,3 ignition outputs are connected to anything.
I am assuming you’re using a PNP adapter of some kind?

I’d strongly recommend getting the crank trigger wiring/sensor sorted as it’s much better. without seeing trigger or scope settings, my hunch is that it’s probably timing you’re struggling with, or too much fuel.
step on the throttle to 100%, provided the setting hasn’t been changed this acts as a de-flood and is the easiest way to figure out if you don’t have enough fuel or have too much.

3

Aw dang, but hey thanks for coming by to help out! Yeah i have the PnP adapter for my emu classic.

I think timing should be all good as far as i can tell, i had a feeling it could be fuel issues.

Ill definitely try de-flooding when i get the chance to and seeing if i can find where my crank sensor wire is getting shorted.

Can i floor the throttle when the car is off or i do i needa do it when the key is in the on position?

4

ECU needs power for that feature, you can do it mid cranking.

its usually under the cranking tab, Engine start > fuel TPS scale. you can actively watch the value change

image
image750×473 24.4 KB

You can also watch the injector pulsewidth change as you do it.

Here is the Ecumaster USA first start checklist, just in case you haven’t found this yet

I’d go through this step by step, should get you fired up. Make sure the base map matches your engine info and since you’ve deviated from the original trigger system (again depends on what basemap used) I’d confirm the timing is correct with a timing light. I do that every engine I fire up regardless of how confident I am in the trigger settings.

5

Hey! Thanks for the reply again, yeah ive been using that first start checklist up to the part where it just tells me to crank it up and play around with fuel.

As for timing, timing seems to be on point when using the timing light since it hits 10degrees before TDC

Ill attempt that when i have the time and ill he sure to show you my files and logs as soon as i get the chance to.

Also as a side question, would you happen to know the injector phase and ignition event stuff when it comes to using the vvti coils/the distributor gear? Obviously its a bit hard to describe without images for now so no worries if you dont have any info on that at the moment