How can i reset de computer of the impala?

Aqu? tienes el diagrama de encendido para un Chevy Impala LS del a?o 2008 con motor de 3.5 litros:

Frente del veh?culo
?
2 4 6 1 3 5
? ? ? ? ? ?
? ? ? ? ? ?
BOBINA 2 BOBINA 3
? ?
? ?
BUJ?A 2 BUJ?A 3
? ?
? ?
BOBINA 1 BOBINA 4
? ?
? ?
BUJ?A 1 BUJ?A 4
? ?
? ?
BOBINA 6 BOBINA 5
? ?
? ?
BUJ?A 6 BUJ?A 5
Recuerda que este diagrama representa la secuencia de encendido de las bobinas y buj?as en un motor de 6 cilindros. Aseg?rate de seguir las recomendaciones del fabricante en cuanto a las especificaciones de las buj?as y los intervalos de mantenimiento para garantizar un funcionamiento ?ptimo de tu Chevy Impala LS 2008.

ENGLISH
Where is the valve EVAP purge valve of a car chebrolet impala 2007 3.5

Have you driven the vehicle? Sometimes after battery replacement some of the dash lights illuminate but once the vehicle is driven they reset!

probably not . have a code reader reset the computer.

Hi,
Just drive the vehicle for about fifteen minutes as you normally would and the computer will automatically reset.
All the best,
Ben

Generally, if you leave the battery unplugged for an extended amount of time (2 days should do the trick), the computer will reset itself and any OBDII codes that have been tripped will be reset. If it is just OBDII codes that you are looking to clear, you can head to any Auto Parts Store and you should be able to buy a scanner to insert in the OBDII port in your car. From there, you should be able to clear any active codes for the time being.

Not likely. You can cut power to reset computer, but if problem is still ther then it will reset the code. Here is a link that may help you.
http://tripleedgeperformance.com/Harsh_shifts__P0742.html

Give it a couple days and see if it resets itself. Some times computers are stubbern like mechanics.

THIS SHOULD HELP YOU

Turn the ignition to ON without starting the engine. Fully press and release the accelerator pedal three times within five seconds. If the CHG OIL SOON light flashes two times, the system is resetting. Turn the key to OFF, then start the vehicle. If the CHG OIL SOON light comes back on, the system has not reset, repeat the procedure. Follow this procedure to reset the GM Oil Life System using the DE 100 Series Radio®. Turn the ignition to ACC or ON and the radio off. Press and hold the DISP button on the radio for at least five seconds until SETTINGS is displayed. Press the SEEK up or down arrow to scroll through the main menu. Scroll until OIL LIFE appears on the display. Press the PREV or NEXT button to enter the submenu. RESET will be displayed. Press the DISP button to reset. A chime will be heard to verify the new setting and DONE will be displayed for one second. Once the message has been reset, scroll until EXIT appears on the display. Press the DISP button to exit programming. A chime will be heard to verify the exit.

NO IT WILL RESET ON ITS ON A MIN AFTER RESTART