Bad idle with EManage Ultimate

[RedT18]

Hey there,

 

I almost finished my single turbo project on my JSpec TT Supra but ran into problems with my idle...

 

Setup:

 

GTK650

850cc top feed injectors

Custom 3" DP

Greddy EMU

 

I am using the EMU's injector scale function. A a start value I put in the 440cc of the stock JSpec injectors. Once I enter the 850cc value of the new injectors the car wont idle, runs lean Lambda 1,2 and higher, revs shitty, stalls from time to time and wont start once it's warm.

 

When I reduce the value to 640cc lambda runs towards 1.00 but then it starts to flip between 0,9 ans 1,1.

 

So bottom line is: I can not adjust the new injector size so that the car will idle properly.

 

I already changed the EMU but this didnt help. Maybe my ECU is faulty?

 

Did anyone of you experience similar issues?

[Tricky-Ricky]

The EMU is not good at larger injectors, and in particular the injector lag times, what have you input for this?

Also what lambda gauge are youusingg? presume itswide-bandd?

[RedT18]

I left the injecotr lag time empty, I just modified the size.

I am using the AEM UEGO WB Lambda

[Tricky-Ricky]

I would try various lag times and see if that helps.

[CanisLupus]

I'm running an EMU with 1000cc ID Injectors. Idles fine, Runs fine, boosts fine etc. Lag times is a must and if you've changed the fuel pressure you can't use the 440 value as the size before