Check Engine

[David16]

My check engine light is on! I have 135k miles and my exhaust is sounding terrible(it is not working) could the exhaust be the cause of the light?

[SSJ2Gohan]

Or a sensor.  Check on this site or 240sx.org and you can find how to check your error codes.  If someone here has it handy they can post it here for you.

Its pretty easy to check and saves you lots of cash from having Nissan do it for you.