Just took my car in for lean codes CEL coming and going and power loss. The dealership is saying it's fuel injectors and that they can clean them for $1500 or replace for $3200 ( not happening with my budget). So my question is, is that ok to get this done from an Indy. I'm basically illiterate about cars so I don't know if it's a complicated job that should be done at the dealership or I can get it done elsewhere. Please advise the best course of action. Thanks in advance !!