Can anyone explain the "throttle adaptation" parameter? Like what causes adaption and how it effects other parameters. Just trying to understand pro's and con's of being enabled/disabled. Any help is greatly appreciated. :usa:
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Can anyone explain the "throttle adaptation" parameter? Like what causes adaption and how it effects other parameters. Just trying to understand pro's and con's of being enabled/disabled. Any help is greatly appreciated. :usa:
Leave it enabled.....it learns so as to try and meet throttle targets in tune
I disabled it, because Ive tried to hold the pcm back from open loop....but dont know exactly at this time if it helps...
I have a 2009 M6 Challenger with a 426 stroker 270 cam. Turning this setting off is the only way that my car will not rev hang between gears. With this setting on when I reset the adaptives the car runs fine. After a few miles it starts to rev hang between first and second when taking off from a complete stop. 3rd and 4th are ok. Then the problem gets so bad after 50 or so more miles that the car will rev to 4 to 5 k when the clutch is pushed in at highway speeds. Disconnect the battery and all is well for a while and the cycle repeats.
How do you do that? This never was a problem before I put in this stroker.
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Thanks for taking a look. Even though it looks like a tune file only the log is at the end.
Have you tried raising the airflow number in the target area that you have this issue? In my experience anytime i make a change to something that have adaptives i drive the car for a day or so for them them to settle before making another adjustment. Sounds like the airlow number need adjustment, just remember the bigger the number the LESS the TB opens and the SMALLER the number the MORE it opens.
Hard to say based on that data alone. Need to log calculated MAP, throttle flow, idle torque, throttle adaptives, torque adaptives, phi adaptives...anything airflow related that you can find. I might also look into changing the displacement to the correct value so you at least have a good starting point. Any info on camshaft, throttle body, etc would also be useful.
Comp 270 115 lsa 111 icl and stock 80 mm tb If I change the displacement the cruse will not work and it will not pass emissions but I will try it just to see. FstDodgeKY I have tried increasing the flow numbers in the idle ranges and it dies out more often but then after a few miles it starts acting up again. If I turn off the throttle adaptive it runs fine.
Quick question. When I turn off the throttle adaptive am I shutting of the algorithm that involves phi? Or is there a second algorithm involved? I also want to point out that this car is a PITA to tune because you have to disable the VVT to get full control of tuning parameters. I have it enabled so I've lost a lot of functionally (VE tables don't work, PE tables don't work, changing PT timing throws WOT timing out of wack) The AFR is close enough (11.9- 13.2 throughout the rev range) but not ideal because the computer uses the stock hidden 5.7 VE tables so I had to log injector pulse and skew the injectors.
Hello malikib. Check out the tune that I posted above. It is disabled I think. I also enabled throttle adaptives and logged for phi adapt. So far all zero's. but once it starts acting up maybe that will change.
Ther are many parameters, I cant log. inj pulse for example....so I dont know exactly where to start with some things.
After disable throttle adapt, the engine is extreme responsible and sounds great. No open loop when logging, no throttle hang.
I leave it disabled and go further in logging, first in closed, later open loop.
Car sounds incredible.....
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Hello Smokeshow. I've attached the current tune and log with phi and more airflow parameters. At the beginning of the log everything is normal. At the end is when it starts to act up.
So I'll be honest with you, working to fix one problem that is a symptom of a combination of a lot of calibration issues isn't going to yield the best results. Right away, your displacement is wrong. Wrong displacement will yield an incorrect torque estimate which will cause idle torque correction to be wrong. That's just a start. I'd set the displacement to the correct value and at least get a good starting point, even if it runs worse in the mean time.
See if you can log engine torque values, torque correction, clutch position, throttle adaptives and any kind of idle or torque status bits. And you can get rid of engine position...it's too slow to be useful.