Hi, the past few months i have been having problems with my car starting, sometimes it starts and sometimes it take 2 attempts, i took it to the garage as the engine management light was on and its saying it was the lamba sensor, so i replaced that but light is still on and comming back as lamba sensor. The boy at the garage has sayed it could be the fuel pump? but i have looked into some forums and there saying it could be the ecu needs updated? has any1 had this problem and been able to solve it? all comments would be appreciated as i am completely lost to what it is and i need it fixed asap for getting a new car.

Thanks.