Vvti 2jz gte issue

Jdmfreak · Post by **Jdmfreak** » Sun Jul 26, 2015 12:07 pm

here are my most recent logs and the tune i was running when i took them the composit log looks worse than before but the car is acting a little better (doesnt break up till 6k rpm with boost control off)

and for some reason my tooth log didnt save but it looked perfectly fine to me

Jdmfreak · Post by **Jdmfreak** » Sun Jul 26, 2015 12:10 pm

my composit log even zipped is too big to upload ill take a shorter one

Jdmfreak · Post by **Jdmfreak** » Sun Jul 26, 2015 2:37 pm

removed resistors from cam , adjusted pots and went out again
im still getting blank gaps in my composit log

Matt Cramer · Post by **Matt Cramer** » Mon Jul 27, 2015 7:39 am

The blanks are likely something interfering with serial data. Not seeing any problems with that composite log. Was it taken during the break-up?

Jdmfreak · Post by **Jdmfreak** » Mon Jul 27, 2015 7:39 am

Yes it was taken during multiple breakups on the same drive
So was the tooth log

Jdmfreak · Post by **Jdmfreak** » Mon Jul 27, 2015 7:45 am

https://vimeo.com/134621886
This video^^ was taken during this breakup point

Sometimes I get a full shutdown until I take my foot off the gas pedal
This drive was before I removed the resistors from the cam wire and took those last logs I had sync loss issues later in this run but not during this video this shutdown happened at the same point as my normal breakup

Matt Cramer · Post by **Matt Cramer** » Mon Jul 27, 2015 10:01 am

I don't think the break up is a sync issue at all now. I'm wondering if it is either spark blowout, or too much spark advance under boost. If these are OEM Toyota coils, these do weird things if you feed them too much dwell; try backing that down to 2.5 ms.

Jdmfreak · Post by **Jdmfreak** » Mon Jul 27, 2015 10:07 am

I'm using ls2 coils (coil on plug), I've tried nominal dwell at 1 with no change, I've used bkr7 plugs gapped at. 032 and at. 025 with no change and yesterday I tried bkr8eix plugs with no change

Jdmfreak · Post by **Jdmfreak** » Mon Jul 27, 2015 10:10 am

And the plugs don't show signs of too much timing

Jdmfreak · Post by **Jdmfreak** » Mon Jul 27, 2015 7:14 pm

NATHANINWA IS THE MAN!!!! it's working perfectly now! The whole issue was with my coil wiring, I had wired the ecu ground wire from the coils to spare ecu ground wires(same as my 7m and multiple other people have done) I clipped that wire and left it unplugged (goes to nothing now) and grounded the ecu grounds to the block..... Presto it's fixed, thank you for helping

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