1997 240sx ka24de hoses

[centralcoaster33]

So, there are a bunch of black hoses around my intake that I want/ need to replace. I have searched the bulk of my FSM and this website and found no specifications about the actual hoses beyond where they go and what they connect to. I understand that some are Fuel lines that could be under pressure and have gas and/ or vapors in them, EVAP lines that may have some amount of air and/ or fuel vapor in them, then maybe some EGR hoses with exhaust fumes in them, Crank Ventilation hoses with air and sludge vapors, Idle and Auxillary Idle valve hoses with just air in them, and maybe some Vacuum lines for my brake booster with just air in them... There are probably more types that I'm overlooking. I want to replace them all. I need to replace the EVAP lines as I'm getting codes thrown from the ECU.

I need the size of the hoses and the material they should be made of please.

It's okay if you don't know all the hose specs I want, any partial data would be greatly appreciated!

I want to get it right because I've seen silicone dress up kits with random sizes, black rubber hoses with random sizes and heard there might be lined hoses for fuel or pressure related stuff. That's too many choices that I don't understand! Furthermore I've read horror stories of incorrect line sizes causing incorrect pressures and messing up how the engine runs. So, I don't want to just eyeball a diameter from old, potentially deformed, stretched or shrunk hoses.

[centralcoaster33]

Any mechanics been online in the last week? Wanna answer what I guess is a simple question? Please?

[MaximA32]

Pictures?

[centralcoaster33]

Pictures?

Um, no. No pictures. Thank you for asking and for the resulting bump. It's all stock and looks like any other stock 240 OBD-II S14 under the hood (except for my cool header!). Like many other 11 year old cars, there's no legible print on any hoses either. What do you think you need to see to enable you to help me with hose diameters and materials? Maybe I can help with a description beyond what I've already written.

[brizanden]

if you take pictures of the ones you are looking for he can tell you their location adn what you would need..... get a pic of a 97 engine bay and circle the ones you need with paint then post em.