well the other day i went to take out my ecu to check the numbers on it to order a new one and l forgot to take off the battery well l put the ecu in and started the car it ran for about 10 min and then i shut it off well 20 min later l went to start it and it didnt start so i was like damn so now i put the new ecu in and tried to start it but still a no go so now l have the mechanic look at it and he said the car is gettin no injector pulse so whats causin this is it because l have a 99 and the key and the comp have to be reprogrameed to work or does anyone have anothe suggestion

 

Im pretty sure you need to have the transponder reprogrammed. Check all the fuzes too.