Log and graph:

O2 Feedback Trim
Airflow Hz
O2 Sensor
ISCV Steps

Attach the log to if you can ...

 

Also, please post your Idle Stepper Map from ECUFlash. I'm not at my machine and can't give suggestions until I get home unless you post your map. =)

 

very good thread.. i might need to check some things on my car now lol

 

Ok, here it goes:

 

 

Bump up the desired ISCV values in the warm areas and see if it helps ... move it up by about 3 in the lower 2 cells.

 

I increased it by 3 in the 2 lower cells four right rows. Is that right?

 

Not the stepper lookup table, the desired ISCV tables for neutral and AC on. The simple 2-d tables.

 

If I increase it by 1 increment it increases by 47. So do u want me to do 3 increments? It will go from 508 to 648.Or is there a way to increase by 1? Sorry for maybe dumb questions. My first time modifying the rom. Thanks

 

I've loaded this map and it didn't help at all. Any other suggestions guys?
Thx

 

I had a AFR swinging issue when i had a metal intake on my car with injectors and cams. Solution was just simply to put the stock intake back on the car .

Maybe later a speed density setup will stop the issues i had with the small lope in the idle from effecting the MAF sensor.

 

bump

 

These are the modified graphs. It didn't resolve the issue.

 

Alright, try setting the ISCV values back to stock and adjust this map ...



Adjust the entire row, starting at the top, to these values ...

0
16
28
36
45
51

I've found the Y axis to reflect airflow HZ values ... this should reduce stepper swings while idling.

 

My AFR also jumps to 20 and above when RPM dip happens.

I will try adjusting Idle Stepper look up table.