I have another 240sx.. it's a 91 and the problem is that when we put in gas (i.e. $30 worth) the gauge reads it.. and then the needle slowly drops to E! sometimes the needle drops BELOW the E! what's the issues with my car? anyone know how i can fix this? thanks for the help.

 

Sounds like the Fuel Sending unit. They dont go completely out all the time. Could be a bad ground and when you fill up it begins to lose the ground. I've never done one on a 240 but they can be a pain sometimes. Most the time you have to drop the fuel tank.

 

thanks for the reply