Nissan Repair: auto, nissan pathfinder, board computer

Question
I changed my battery an now to get my 04 Nissan pathfinder to start I have to step on the gas what's wrong with it

Answer
really puzeling one this you only changed the battery and now you have to stadn onto the gas pedal to get it to start must be something to do with the ecu on board computer try getting it reset see if this works get back to me and i will get the books out to see if there is any reasons why this would happen