Hi I am new to the forum and I found a nice 1994 300ZX N/A (145k miles) for sale in my local area for a good price. Since I am new to the 300ZX, what are some common problems for the 1993+ models? I took some pictures of the engine and it seems pretty clean, but how many miles does the vg30de usually last? I checked the carfax and it showed that the car failed emission inspection (California smog) a few times, does it mean that there is problem with the motor? Thanks!