Kracka

iTrader: (49)

I've been having a bit of a problem getting my car to idle well with my cams, but only when the A/C is on. With the A/C off I've gotten my idle tuned perfectly. It almost seems like I'm missing a table that could greatly help me out. Does the Evo IX 88590015 ECU have a "Desired ISCV intial step position with AC on-Drive" table? I have one for AC off-Neutral, AC off-Drive, and AC on-Neutral. My car sometimes idles low with the A/C on and when coming to a stop the RPM's dip and engine sometimes stalls.

Raceghost

iTrader: (4)

What rom are you using?

...oops missed it in the post. I am not familiar, sorry I could not help. Bump for you.

fryedchikin

You might find what you are looking for in these threads.

https://www.evolutionm.net/forums/ec...t-working.html

https://www.evolutionm.net/forums/ec...sassembly.html

Kracka

iTrader: (49)

Thanks, I'll check those out!

biggie5252

iTrader: (47)

What version of ecuflash? I have a desired ISCV initial position ac on table. I bumped up the bottom two cells up about 12 points to cure the rpm dip when you let off the throttle.

I also have another table that's labeled target idle ac on or something like that. Sorry my laptops not with me.

Kracka

iTrader: (49)

I have ECUFlash v1.42. What are you using?

biggie5252

iTrader: (47)

The newest one. IIRC the tables have only been in the last couple versions.

cij911

iTrader: (14)

I too would love to increase my idle RPM when the AC is on, how are people doing this ? (I am on stock cams, yet the car feels like it is ready to stall while at idle and AC on full...)

biggie5252

iTrader: (47)

Desired ISCV intial step position with AC on-Neutral is a good place to start. Bump up the bottom two cells by 10-15. That will help the rpm drop when you first let off the throttle.

Then there's Target Idle RPM with AC on #1 and 2. You can try raising those tables a little bit. I'm not sure what the difference between the two is.