So my 2003 z33 has this oil light on. And the thing is I replaced all oils and fluids. I also cleaned out the oil pan and strainer. Please help.

 

Assuming you topped off at 5 quarts with a new filter, 2 things to consider. Any other electrical issues with the car? Also, what does your pressure guage read when warmed up @ idle?

The almost obvious choice is to replace the sending unit. At 13 years, it's time. That way you will know if your oil pump is doing it's job.

Welcome and gl!

 

What does your oil pressure gauge read?

 

75+ cold start, 25 or so after warm up. 06 w 101k.

 

My pressure is on the first pin . When on idle. Then as it warms up it tends to go down to zero when up and warmed up.

 

My pressure is on the first pin . When on idle. Then as it warms up it tends to go down to zero when up and warmed up.