I have an 2003 Nissan 350z touring and my service engine light is on it says its miss firing in cylinder 1 and irregular idling what can i do?

 

Check your plug and coil pack on that cylinder thats the easiest place to start.

 

probably bad spark plugs. how many miles you have on the car now? When did you changed your spark plugs? if not, you need to replace them. Do all 6 instead of just 1.

 

i just did my sparks in april but i think it might be the coils and when i turn the z on today the service light turned off

 

Check the plugs. All of them, to get a picture of what's going on. Runnin rich or burning oil? Post pics if you don't know what to look for.

Make sure you're getting spark

compression test on all cylinders

If all is well, i'd look at the injectors.

 

ok thank i will chanfge my spark coils