I m asking this because sometimes. My car feel stick at the road. When i launch it from a stop it start slowly until it reaches 4000-4500 RPM. I put the VSA off and it was the same thing.

If it was a problem with my AT transmission , should i see an error code, a check engine light ?

I noticed that this problem occurs when i do a lot of city driving.

I always use premium. I drive a lot so i'm sure it's not a faulse feeling, the car doesn't react as usual, but not always. That's why it's difficult to make it checked by the dealer.

any ideas ?

 

I'm not certain what you mean by, "My car feel stick at the road". Do you mean to say that your car feels "sick"??

If your question is about after having driven the car easy for some time and when you get on it, it feels initially sluggish and slow to accelerate in the lower RPM ranges, then I believe the reason is because the ECU has "learned" that to be the "normal" manner of your driving. It will quickly relearn other modes.

 

what he said, the ecu has many maps that adjusts to your driving. so after couple of hard accelerations, it will adjust to it.

normal driving, the car shifts around 3k for me. but once i get on it for a little bit, with the same amount of throttle open, the car shifts at 5500rpm

 

sorry for my english, i would like to tell stuck like if there was some glue on my tires.

Even in manual mode the take off is slower than it use to be. It's like if the car doesn't give 100% of what it can do.

 

Why the hell are you launching an Automatic at 4k+ RPM's anyways?

Should have bought a MT if you want to launch it.

However, to answer your question I would do the following to reset the ECU if it were my car.

1. Disconnect the - terminal on the battery for 30-60mins.
2. Reconnect
3. Start the car and let it idle for 10mins. DO NOT TOUCH THE GAS!
4. Turn the car off remove key from ignition.
5. Restart and drive.
6. ????
7. Profit.

 

I don't want to launch it at 4000 rpm, just start it from 800 to redline, and it feels slow between 800 to 4000 rpm

 

The one thing people complain about is this car lacking low end torque. vtec doesnt kick in until about 4k, so that could be a differentiating factor. As for the other question Im not quite sure what you mean.

 

arent you supposed to reset and then drive it like you stole it?

 

You can usually reset an ecu so that it "relearns" how you drive and sets up more agressive maps per say.

For instance on a WRX if you add an intake you need to reset the ECU or you will throw a check engine light because the car now monitors more air than previously. So you reset the ecu like I posted above and the ECU now makes a new map to accommodate the new mod. SO now on your first test runs after warm up and you are beating on it the computer is learning how you drive and making the necessary changes needed.

 

Only after you let it idle for 10-15 mins. It's best to do it when the car is cold. This way it learns how to idle during a cold start up and when you shut it down thats all stored by the ecu. Then you drive a couple miles like you would on a cold start and drive to warm the engine up. Then drive like you stole it and profit. This method has been proven to work. I have used it on my previous Subaru's and Honda's with good results.