Hi I have a 2001 Nissan Altima n it’s pretty much isn’t starting I hear it like want to start but it’s not cranking on I recently gotten it to a shop they told me I have fuel compressor my third cylinder is low n my computer is bad. I don’t know what to do because I need my car to get to work! I just need this car to up n run until I’m able to train it in if any advice please comment not sure where to start I don’t have the money to let the shop repair it should I get a computer or the compressor first?? -Mimi