How to reset the car computer for a chvy cavalier 97 2.2?

All my sensors come on when im running and i cant see my speed since the tech change the cpu. what can i do ?How to reset the car computer for a chvy cavalier 97 2.2?most vehicles will reset if you remove the + or hot -red cable from your battery for 30 seconds or so , then just reatach it , o.k.? it should be fine then , if not talk to the tech . that worked on it , he must have done some thing wrong .How to reset the car computer for a chvy cavalier 97 2.2?Remove the negative battery connector... press and hold the brake to fully discharge the system. Leave disconnected for about 5 to 10 minutes... then reconnect the battery cable. That will reset the ECU.How to reset the car computer for a chvy cavalier 97 2.2?You'll need to either get a code-reader, or take it to a repair facility to get the computer reset.How to reset the car computer for a chvy cavalier 97 2.2?This is easy to fix. Disconnect the battery terminal for a little while and reconnect it. That should restore the CPU back to default settings and clear any sensors that are on. If you continue to have problems with it after this you need to get it in for servicing. The computer may be messed up.