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Predator tuning - Is it adaptive?

3K views 16 replies 7 participants last post by  Devils6 
#1 ·
Quick question for Predator users. I know our car's engines learn from our driving habits and change the way it runs slightly. Confirmed this by disconnecting the battery before I even had the tuner. It was like night and day the first couple days.
My question is, is the tune installed by the Predator adaptive as well?
 
#2 ·
If I understand your question correctly, yes.

After you install the tune, your car will still go through the adaptive process, it just uses your new tune as the baseline instead of the factory tune. I know I go through and refresh my tune every couple of months due to the ridiculous stop and start in this area, drive it like a raped ape for the first week or so after a tune and it seems to hold the settings longer.
 
#3 ·
After you install the tune, your car will still go through the adaptive process, it just uses your new tune as the baseline instead of the factory tune. I know I go through and refresh my tune every couple of months due to the ridiculous stop and start in this area, drive it like a raped ape for the first week or so after a tune and it seems to hold the settings longer.
I knew I wasn't going crazy! That is so annoying but I'm glad I know for sure now. I'm going to reset mine again today.
Thank you!
 
#4 ·
Anybody know of a way to stop it from happening?? :confused:
 
#6 ·
Heard that!
If gas goes down, maybe I'll go with that... :D :driving:
 
#8 ·
The adaptives learn how you regularly drive and...adapt.

With my SRT at least, all I have to do stomp it once or twice and it adapts quickly to wanting to be a raging beast again.

I have been driving like a granny for the past 2 weeks with the cold and snow but tonight when I came home from work I took a sharp exit turn and nailed it. After that, the Beast was back in full-on "bring it" mode.

Like the SRT engineers said here a couple of years ago..."It may seem to be like it's becoming tame, but kick it in the @ss and it will remember what to do". :)

Reset it if you want to, but all you really need to do is drive it hard for a little bit to wake the dragon. ;)
 
#9 ·
I will give that a shot!
Though I'm sure there's a big difference between your boss-ome SRT engine and our lil semi-Hemis. :biggrinjester:
 
#13 ·
Here is some basic information...

"The ECU "learns" about your engine and driving habits as you drive the car. The "learning" is actually a process that the ECU uses to track the tolerance changes of the sensors and actuators on the engine. Two examples of these values are the position of the idle-air bypass valve (automatic choke) at idle with the A/C on, and the trim gain on the injectors. The ECU stores these "learned" values in battery backed-up RAM so that it doesn't have to start from scratch the next time you turn your engine over. Most modern ECUs are designed to maximize fuel economy and therefore want to make the transmission shift sooner and reduce the response to acceleration so that the best fuel economy is achieved.

"Resetting the ECU" is the process of clearing all the long term memory from the ECU's memory. These variables trim idle speed, fuel, spark, and more. The ECU will also store trouble codes for diagnostic capability. By resetting the ECU, the trim values will be set to some neutral default value and all of the trouble codes will be cleared.

To "reset" the ECU, all you have to do is remove the source of backup power. To keep the memory alive while the car is off, the ECU has a direct line, through a fuse, that goes right to the battery. This is usually the same line and fuse that supplies backup power to your radio so it doesn't forget all of its settings. Your ECU has now lost all of its long term memory values and will "reset" them all to defaults when it next powers on. By the way, the factory radio's memory lasts for a minute or two, so you probably will not lose your saved stations.

There is quite a bit of mythology revolving around resetting the ECU. Many people mistakenly believe that they need to reset the ECU after installing major engine modifications or after long conservative driving habits. Others believe resetting will resolve engine problems. Neither are correct.

The ECU is always tracking the engine's sensors and actuators. Resetting the ECU does not cause the ECU to learn engine changes any faster. The ECU is always tracking the gradual changes in the engine sensors and actuators. The ECU never gets satisfied with a setting, and is always updating the trim values. It will discover whatever change you made to your engine or driving habits and make the appropriate changes. In fact, unplugging the ECU will most likely increase the learning curve of the new part.

There are only two reasons why you would want to reset your ECU. One is to clear a CHECK ENGINE light or error code after fixing the problem that caused the error. The other is to reset the spark advance trim value. The advance trim controls how much the timing is retarded from what the factory engineers considered optimum. This particular trim value is the only one the ECU "resets" to a non-neutral MAX value. If you are driving on low grade gas, the pinging picked up by the knock sensor causes this trim value to be lowered, and your timing to be retarded. If you go to the track and put good gas in the tank, you might not want to wait for the ECU to learn about the new gas and advance the timing. So resetting the ECU in this case makes sense. However, in the process, you will lose your idle and fuel trims (probably not too important for drag racing, though).

Won't clearing the trouble codes make the car run better? If the ECU notices a problem with a sensor, it will flag a code and possibly turn on the CHECK ENGINE light. Should the problem go away, the ECU will turn off the light and start using the sensor as normal once again. The code will be stored inside for later diagnostic retrieval. But that code being stored does not affect the ECU operation in any way.

I reset the ECU, and now the car runs rough! Why? The engine may run rough or idle poorly right after ECU reset. The ECU now has default numbers in its trim memory - it has to adjust them to match the tune of your engine and its sensors and actuators. It might take a day or two of driving normally before the engine will settle down again. Now you know why the ECU remembers these values in the first place!"
 
#14 ·
Excellent post!!!:bigthumb:
 
#16 ·
longtime members are always happy to help!
 
#17 ·
how often do updates come out for the intune

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