Why won't my Nissan 240sx go into reverse?

If your Nissan 240sx won't go into reverse, it could be due to several issues. Common causes include a low Transmission Fluid level, a worn-out clutch, or a problem with the transmission linkage. Additionally, if the transmission itself is damaged or there are internal mechanical issues, this could prevent it from engaging reverse. It's advisable to have a mechanic diagnose the problem to determine the exact cause.