gmpp e67 ecu ls376/480

[nutte]

Hello

can anyone help me understand what is hapend after 5000rpm the ecu dumps a ton of fuel in and i cant understand what it is?is it somthing i should turn of?torque control,traction control or what do you guys think.
11681

thanks christoffer Sweden

[joecar]

Can you post a log file...?

What are you using to tune the ECM...?

[nutte]

1169011689

cant get the logs in here can i email u them?

i am using efilive.

thanks christoffer

[joecar]

The logs attached just fine, I can open them no problem.

That ECM can be flashed ok, you're not having any problems flashing it...?

Hmmm...the ECM is throwing P0606.

[nutte]

no problem flashing it.

[joecar]

Hi Christoffer,

From the log files, it looks to me like catalytic over-temperature protection is enabling.

[nutte]

Hi Christoffer,

From the log files, it looks to me like catalytic over-temperature protection is enabling.

ok what does that mean and how can i fix that?thanks christoffer

[nutte]

Hi Christoffer,

From the log files, it looks to me like catalytic over-temperature protection is enabling.

ok what does that mean and how can i fix that?thanks christoffer

[joecar]

Can you post your file...?

Under the Engine Calibration folder there should be a subfolder named Cat Converter.

[nutte]

i tried to post it but it diddnt work.if you give me your email i can send it?

[joecar]

i tried to post it but it diddnt work.if you give me your email i can send it?Hi nutte,

see post #2 here, start at point #5 (or follow the numbered arrows): Hosting-an-Image (http://forum.efilive.com/showthread.php?3064-Hosting-an-Image&p=38410&viewfull=1#post38410)

[Bert-Ola]

Still the same problem with no reaction on changes i VE even with Cat Protection disabled.
Engine goes rich on higher RPM.

We are out of ideas on what can be wrong.

See attached tune file.

[joecar]

That graph shows wideband lambda...?

It approximately follows table B3618.

You have MAF enabled, so if you are running a MAF sensor then MAF is being used during steady state WOT, so any changes to the Virtual VE tables would have no effect at WOT.

[Bert-Ola]

The graph are from our Dynapack dyno, the wideband was mounted in an extra bung on the exhaust.

What tables are the MAF values used against on WOT in open loop?
We did not got any changes in lambda on higher rpm even with great changes in B3618.
I thought this P.E. would get us leaner an not richer on top.

/Bert-Ola

[joecar]

If changing PE had no effect, then there is a table richer than PE (the richest active table is what the ECM commands)...

e.g. things like cat protection, piston protection...

I see cat protection is disabled, and I don't see any other protection tables... hmmm, I don't know what is commanding fuel in this case.

[nutte]

must the maf be disabled when changing ve table?because the ve table doesent respond on any changes.

[joecar]

Yes, disable the MAF when tuning the VE table, otherwise the MAF dominates (MAF is used for steady state, VE is used for transients);

confirmation of MAF being disabled is the presence of a MAF DTC.

[nutte]

how do i disable the maf?thanks christoffer

[joecar]

In the Engine Diagnostics section, in the MAF folder, set the upper frequency to 1, and the count to 1.

You will know it has failed when a MAF DTC triggers.

[joecar]

To tune the VVE see this thread: E38-VVE-Setup-Guide (http://forum.efilive.com/showthread.php?8961-E38-VVE-Setup-Guide)