mochaj Posted November 10, 2008 Share Posted November 10, 2008 i had a new ecu installed a week ago and noticed a missing and early shift from i think 3rd to 4th. when i get in the car and go (granted its cold) the car shifts to what i think is 3rd to 4th it bogs way down almost like a manual would when going from 2nd to 5th. its weird. after about 5 miles it disapates but still seems confused on 3rd to 4th shift. it will go in to 4th but in order to get power i have to get into it to drop the gear. all in all the car is not driving like it used to. had the ecu changed for a tank pressure valve code that would not clear. i have no more codes but the issue mentioned above. is the ecu still learning? or is it not set up correcly? thanks for any feed back Link to comment Share on other sites More sharing options...
masterxtech Posted November 10, 2008 Share Posted November 10, 2008 is your car stock? so do u warm up ur car first? what car do u have? Link to comment Share on other sites More sharing options...
mochaj Posted November 11, 2008 Author Share Posted November 11, 2008 ya i let it warm up for 5 to 10 min. i just bought the car 05 legacy gt. the only non stock component is the exaust. cat back. i noticed a "performance" shop sticker on the window so im not sure if it was at a tuner before. im taking it back to shop to see if they can figure anything. i just dont want a load of crap saying oh it has to learn or something to that extent. if that gives you any help. thank you Link to comment Share on other sites More sharing options...
mochaj Posted November 13, 2008 Author Share Posted November 13, 2008 fixed issue it was the O2 sensor. car wasnt throwing a code until i got to the dealer ship. crazy. so i hope that is it they havent installed part yet. so once again i have a chk engine light and my cruise control is inactive. Link to comment Share on other sites More sharing options...
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