Oil light on at idle, I have a oil pressure gauge , need some help!
Hi! okay so ive been searhcing for the past few hours on tons of similar topics , however every topic i found the person didnt have an oil pressure gauge installed , I do so i wanted to ask and see what i can narrow it down to before I take it to a shop.
I have an oil press gauge installed at the head, at idle it reads 0 , as I step on the gas ( i also drove it around the block and back to the house ) it mantained pressure , but as soon as its idle it goes back to 0 .
I opened the hood and I noticed one of the cables that goes to the pressure gauge was missing the cap , so it was barely hanging on... but still making contact, so now i dont even know if those readings were correct.
Assuming the contact the wire was making to the gauge was good enough to give accurate signal , and the oil pressure was indeed dropped at idle which would make the oil light come on , would it still be a faulty sending unit ?