hello again.

my last idle screw ajustement fixed my cold idle low rpm and got it in close loop and it worked fantastic. I when for a drive with auto tune on, (idle locked out). I stop after a bit, checked a few thing and it died (I havent got to this point before, all afr looks good)

im letting it cool now, but fully warmed up it wont start without a bit of trottle, bring it to 1k and let it go down, and a hard drop in rpm will make it die

i added the tune and a log of start, start with help, and a blip

what am'I missing. all my changes (i try stuff and when back) does't affect much.

 

I hope you're not running this tune on a boosted engine. That timing in boost is insane. Just curious, where'd you get this file?

You're looking for the Idle Cranking Duty table. You likely need to raise the value at high coolant temps. That should get the car starting easier when it's hot.

For the car dying when returning to idle you could raise the dashpot adder in Closed-Loop Idle Settings which will hold the IACV open a bit more when returning to idle to let the car settle more slowly. If it were me I would change from "Use last value" to "Use initial value table" so you have less variability in where the IACV is sitting when returning to idle.

PS, I'm unable to see anything in your log, it might've uploaded incorrectly.

 

tx I will look into it right now,

my miata is not boosted yet . i want to figured out the na first before getting spicy.

or is it too much for na? I got some base from a local tuner, but he does hp more than ms

 

If you're on 93 octane it's probably fine, might be a bit too much timing for 91, but I'm also not the most experienced at this. Also hard to say without knowing anything about the car/setup.

AFR table is pretty weird too. The majority of the table is allocated for boosted operation and it's generally pretty rich everywhere.

 

the car is stock, i do have ms3 obviously, and the intake manifold / throttle body from skunk, the aem wide band, and a shorty intake tube. the rest does not matter, coil over and stuff. i basicly put the ms3 this weekend, and im trying hard to get it going, the wife miss the topless. anyway I thought I was good to tune it, and it turned out it is a bit more than thought.

riding is fine. the cold start was great this morning , even the at temp start. i when for a drive, with auto tune on, idle locked out, perfect, stop once, great, second stop it die, well heat soak, i when back to the pre auto tune, and nop,

let try the log again.

once started now it run, it fall off too fast and try to catch itself at 500 but it too late. feel free to mess with the tune

 

i got some stuff on the idle is weird but it does run/start without help

 

Year/Generation of the car is probably going to be the most relevant here since that will tell 1.6 vs 1.8 and piston compression ratio. What octane of fuel are you running?

 

02 1.8 91 octane. compression idk stock, run well before. nothing on the engine but a full skunk intake setup.

 

really my only problem, it start fine, but something between the cranking and getting in the close loop. ignition may be a tad high idk. I have try a few thing and nothing seem to improve it. I'm always going back to that step.

idk about the time to get some 5 bar on the aem heating up.

 

I should've clarified that if you're going to switch to using the initial value table for idle, you need to actually fill out the table with sensible values. Using the "previous value setting" might be better for now until you have the time/knowledge to go out and properly setup that table.

My guess on the hot restarts (based on what I've experienced) is that you probably need a lot more after start enrichment. I have to dump a ton of fuel in for quite a while (maybe 50+% enrichment for 30-60 seconds) to get the car to idle happily on hot restarts. I'm not sure how much you would need but it's worth a shot.

You can try this if you want. I modified the spark map (mostly just pulled timing in some areas, added a bit of timing in cruise) and afr targets. I also changed the ASE on hot starts and enabled closed loop lambad sooner after the car is started (from 30 S to 10 S). This is all a shot in the dark since I'm still unable to figure out how to view any of the logs you've posted.

 

Perfect, i will try that tonight, i got a side job I got to do today and tomorrow.

For the logs, i just start-stop it and save as, that what i put in here, idk if that right

 

i think I messed up too much with it to start and now it all over the place. anyway first question, the idle screw, how far out? i got it at 2 turn out after the long restart.

i try an other war for the log, see if you can read it, at the end im just waiting for the fans to kick in, but it would not start without help at all,