Alfa 2.0 V6 turbo

[rob@vems.co.uk]

Use microphone cable, its designed for discrete signals in a noisy environment.  The stuff used for live PA microphones is the best stuff to use.

[lost]

i found some coax used for securiti cameras, conected it to VR connector and no more ghost rpm signal.
also din't connect shield wire at all. on VR side.

can anyone tell me why autotune option i gray in ve table (tools/autotune)?

using 1.1.46 v2.

or i need to turn it on manually somehow?


also i'ts running rich at 0.8 lamda
map is around 70kpa at idle and goes down to around 40 at medium rpm's,

here is datalog. i did turn car off few times and cut fuel pump.

[rob@vems.co.uk]

Connect one end of the wire's shield to ground.

Autotune isn't supported in the newer releases, you should be tuning by hand now, as that the fun part!

[lost]

So i need to go to open loop tuning procedure...
Car is working nice onley it seems little rich.

Is 70kpa normal at 800 rpm. it goes to 30-40 at around 3000rpm. didn't force it to boost yet.

[gunni]

It´s running?
Now you map.

If it´s rich then just fix that by tuning  :o
As that is the whole game anyway

[lost]

yeah runs real nice almost like on original motronic.

So how to tune . i watch current lambda , say on 1000 rpm 70kpa and then adjust ve table % ?

i get around 35% ignition advance.

and how to watch pulse width?

req fuel is 11.4

[lost]

and i noticed that it on mlp07 screen i get afr reading but no O2% reading at all.

[gunni]

You now need to familarize your self with the Megatune program.

Pulsewidth gauge is on top right hand corner when you turn on the program.

When tuning go into 3d VE tuning and you can see lambda, lambda target, pulsewidth and so on
be able to tune the fuel,

And yes you just adjust the VE numbers until lambda is good.

[lost]

here's something i found. for future alfa tuners :)

[lost]

In megatune in lower right corner i get occasinal red ??missfire?? blinking. but car seems to work ok.

What this means?

[gunni]

dissregard that,
I have not seen that work, even under missfire when accelarating at high rpm and load.

[lost]

finnaly found out that i can increas values in 3d table . : ))  until now i shifted main megatune screen and tables .. better late than never  ;D

[lost]

Where is the best place to mount EGT probe, is it ok to mount it few inches after turbo, near to lambda probe ?

[gunni]

Keep it before turbo ,
Best is close to the assumed leanest cylinder.

[lost]

so what would be leanest cyl on v6 alfa? 

I hope that it's #4-5 or 6   ;D