How do you read ecu codes?
I have a problem w/ my 98 navigator, its stumbling bad at idle. The consult at autozone said both banks were running lean. I want to know how to read the codes myself. As in, my 300zx has a way to put it in self diagnosis, and the engine light flashes the codes to you. Then there is a list online of what they are. Does my navi have this feature?