What dash light sensor looks like a 4 car garage? and what does it mean? my car is a 1985 300zx non turbo

I will assume that means the turbo is in boost.

no turbo means no boost which means no boost pressure sensor

you think? its probably telling you that at least something is not working appropriately..while driving have a buddy climb out on the hood, no, take hood off so he can really see, punch it and tell him to
see if the turbo comes on. easier when starting, if the light comes on,
look at the tach, if its screaming 7K then it might be on, else, its probably broken.

run fault codes and look for TCM and other electronic problems in the transmission.

that fault indicator means one of ur engine sensor is having a problem have it checked from a garage with electronic scan tool designed for ur engine to locate the faulty sensor....

Most times, warning lights, engine lights ect, can be reset by disconnecting the battery for 5 minutes or so, but you will also loose any saved radio stations, times, and anything else like that.

There's several variants of the engine.

There's a 2.2L Inline 4 which came in turbo and non-turbo
There's a 2.5L Inline 4 which came in turbo and non-turbo
There's also a 3.0L V6 as well

But since you asked for the 4 Cylinder, it will either be 2.2L or 2.5L non turbo

look for the turbo under the hood it looks like a snail kinda

Sometimes the fuse looks good,but replace it anyway,that sensor in under your dash,its red and round.

Check your air mass sensor