2016 Z06 LT4 speed density

[AGRO]

Has anyone had success with a speed density tune on a 2016 Z06 LT4? E92 pcm.

[Matt510]

I have a 2015 Z06 A8 (Z07 Package) that I am setting up a base SD tune as I type this and going to do a little logging here shortly. I'll post some updates on how it goes. This is the first one I'm doing with EFI Live. Although for years I solely used EFI Live my hands were a little tied since the C7s were released. The new DI motors and new ECMs are a new animal. Can be very challenging and rewarding at the same time.

Matt Zapalac
510 Race Engineering

[Ls1_Rulz]

you do it SD open loop or close loop ?

[AGRO]

I had a shot at this, the ve table dialled in nicely on cruise and idle, however there was no boost at all once full throttle was applied. The pcm obviously went into a limp/fault mode, I just couldn't find the table to combat it. I will have another attempt shortly.

[EFI Tuning]

Try B302/B303. I noticed them after I finished up a 16 Z06 M7 this week. I ran into the same issue. If they work please report back. The other approach is to dial in MAF then create a histogram of MAF/MAP reported airflow error and apply to the VVE MAP table.

[joecar]

Are you getting a MAF DTC immediately on engine start...?

~Moderator~

[joecar]

...
The other approach is to dial in MAF then create a histogram of MAF/MAP reported airflow error and apply to the VVE MAP table.

Good idea




~Moderator~

[joecar]

Try B302/B303.

...

Did you mean C0302, C0305...?

[AGRO]

Found the issue, set C0311 to 20 v
problem solved!

[EFI Tuning]

Found the issue, set C0311 to 20 v
problem solved!

Is that table actually allowing SD mode? It seems setting it that high only presents the MAF tests from running which doesn't seem like it will give the intended effect.

Tim