So, I think I found the shifting problem you were referring too. Today, after work, I was testing the idle, and it's perfect. I took it around the parking lot, and it bucked really hard on the 1-2 shift. That reminded me that it has done that a few times in the past, right when I first get in the car, usually on the first shift.

What's your recommendation there

 

what i was talking about is like a dead shift feeling, where the car feels like its falling down vs pushing itself forward.. is that what you mean? like a rough shift due to no rev inbetween the shift..

try 53 steps at 122F on Desired ISCV intial step position with AC off-Neutral

also in all the idle RPM's highlight them all and hit = and put in whatever value youre targetting. i target 1000rpm usually.

 

That must be what it was, I'll give that a shot in the morning!

 

I'll be trying this tonight as well. God I hope it works.

Would the warmup enrichment vs. RPM help at all? Adding some fuel would lower the idle right?

 

no more fuel wont lower the idle.. it will just waste more fuel. the only way to lower the idle is to control the amount of air.

 

I def need to try this.

-Jalal

 

This sounds like an issue I had a few years back. It was triggered by disabling the cold engine ignition retard feature. I must have resolved it by tweaking the ISCV tables. Most of the ones you guys have been posting are all pretty much bogus. I have a thread that outlines all the correct tables.

 

the one i adjusted did fix the issue, but can you find that thread mrfred? is it the 3d table by chance? the Idle Stepper Look up Table?

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couldnt find it but i did find this info from you: https://www.evolutionm.net/forums/ec...sassembly.html

so i guess its the Desired ISCV intial step position since that did work on my car & neonglh's.. because i was concerned about my built engine idling high cold due to high oil pressure (100psi+).

when i fired it up (from sitting in garage (38F)) it idled around 1300rpm for a split second then dropped down. i havent tested it again since then tho. (month ago). my car doesnt get driven in winter, our weather causes rust to fast so i keep it stored inside all winter.

 

I'm wondering if this isn't baro related instead of temp related. anyway, I just had my idle jump to 2500rpm on a cold start where the temp was in the mid 50's lower 60's. Here is the screen shot of the beginning of the log and a shot of my tables.





I haven't adjusted anything yet, but my vaules seem higher than most.

 

lower the first column on the top one and tell us what it does. it should lower the idle on cold start.

 

Ok, this morning I tried the settings you posted above. Car started up around 1500RPM and slowly dropped down to my target idle. Much better than the last cold start I had, but since my car was very erratic with the high idle I'm going to give it a few more cold starts to see if it worked.

 

took the car to lunch this afternoon and the problem is still there... I started it up and RPM went to 1500 then quickly shot up to 2200 again.

 

oh your rpm shoots up? mine doesn't do that with 9417.. are you using the 9653 rom? i think the 9653 did idle high on my car when i tested it.. that was last winter though in the garage for a split second when i was playing with DMA logging.

have you tried to lower some other cells also ? id try lowering more so it covers all temp areas and see what happens.. never hurts to play.. just backup your rom first so you have something normal to go back to.

 

Also interested to see what ROM you are using alwaysinboost

 

Sorry I haven't updated this thread in a while, been busy getting the car ready for the first race next week.

I'm using 9653 v7. The car is still doing the high-idle thing. Very inconsistantly though.

I did some logging of my ISCV steps @ startup and noticed that regardless of the figures I plug into the Desired ISCV step tables in ECUFlash, my actual ISCV steps are almost always the same @ startup. That makes me think that changing those tables isn't having an effect.