Alfa 2.0 V6 turbo

[lost]

if you have simens deka IV use:
open time 352
effectiva rampup 408
rampup voltage comp 4080
voltage compensation 800us
that are good settings for simens deka

in idle you should have VE 60-70

btw where are you from?

I got idle VE 63 with these, setting, drove car around, thanks  ;D

[MWfire]

no problem.
btw if you want to have good tuned car, just send me PM. I have dyno and i did a lot vems instalation.

[lost]

Connected boost valve to vems today, it was working good last year, with old firmware/config, held pressure at 1.2bar

Now every time i hit the throttle boost goes to 1.2bar and hit overboost fuelcut.

When i remove fuse for boost valve, it drives ok, but onley at 0,5 bar (factory wastegate setting)

So what i need to edit to get boost valve to hold 1 bar steady?
Anyone got setting for valve from webshop?

THX!

[mattias]

I know it worked before, but you should never try to produce more than double the boost set by the wastegate spring.
The spring will be too soft and causes problems and overshoot.
Show us your tables for MAP target and reference duty cycle.
Check the datalogs to see what dutycycle the boost valve gets (screenshot is easy here too).

[lost]

I cant find map target, is tihs boost target 1st gear?
What i need to change to get it to hold pressure at 190kpa?

Stock ecu holds it at .9 bar with overboost at 1.2 bar

[mattias]

Disable the PID first. Set all to 0.

Then set Boost target to 120 kPa, it's relative pressure not absolute (2.2 bar in your table).

The reference duty cycle of 100% means = valve never never let boost pressure open the wastegate, so you hit the overboost fuel cut.
So after fixing the above, start with something reasonable, like 50%. And see what boost that produces, raise (or lower) until you get your 1.2 bar boost. Then enable PID.

[lost]

http://fileape.com/dl/wuOLwgNGYTKYJk1B

Here is my log driving...

When refDC is at around 73, P I D are zero. now i get desired 210kpa boost.  (110kpa boost target)
If i enter P I D values then i get around 170kpa max.
And it look like boost build up is somehow slow  :-\

Could you also take a look at off throttle afr and my egt readings its maybe too high... its hot day...


Thanks, for tips!

[MWfire]

your boost target table is all wrong(rpms and boost target).
Fill that table and you will have good boost.

[lost]

Do you maybe have some exaple?

Is it like

800 rpm  0kpa
2000rpm 40kpa

or? just enter rpms and leave  110 kpa target?

THx

[MWfire]

put rpms, 2000 3000 4000 4500 5000 ....
and for boost target put real values. So if your turbo is filling let say 150kPa(apsolute) at 3000rpm then put 150 as target. So at 4500+ put 210kPa target.

[lost]

When im driving, lets say at 4000 rpm and lift throttle, it revs goes down as car is deaccelerating, lambda shows lean as it should, and then at around 2000rpm i get 0.86 AFR and with zero throttle.
Why?
How to get it to go to 900 rpm without injecting fuel.
If im in fifth gear at 1700 rpm an i lift throttle, it stays for a few seconds at 1700 then slowly goes down to 900, same thing happens when i press clutch.

[MWfire]

your fuel cut and idle settings are wrong. It's hard to make perfect idle with very low fuel cut. If you put to low fuel cut you will have problems with engine stalling.

[lost]

I switched to vag COP ignition last week, everything was fine first day, then tomorrow morning started car and it didn't fire on all six...
It turns out that one COP burned out
Are Dwell 1.47ms and map scale settings (2) good?

Also does enyone have PID and other setting for bosch two pin idle valve?
If someone uses same valve, please post screenshot or mail config to: [email protected]

Thanks

[MWfire]

try p=45 i=10 d=50

[lost]

Tried dieffrent settings.
when IAC is disabled then engine runs at 1300rpm idle  when warm.

If i enable IAC then it jumps up and down from 500 to 1300 rpm forever, tried to play with ve but then engine stalls  :-\
this is PWM type... tryed changing from 50 to 200hz.