Bored_Rice

Sorry to be a newbie, but where is the coolant sensor and how do i replace it?

Oh thanks for the suggestions guys, will keep you posted

Any other suggestions?

Think it might be a leaky head gasket. That would explain why it starts to run roughly when it warms up, because the oil's viscosity varies with the temperature.

She isn't running hot and the oil pressure is good. Its just that when she gets to the normal temperature, her idle gets rough and slow acceleration under the 2K mark.

My 1978 280z starts fine, idles and runs well when it's cold, but after a few miles the idle becomes rough and she starts to hesitate below 2k rpm. I looked around and found other threads where people had the same problem as me and there were a few suggestions ,but the original poster never posted back to say if they fixed the problem or not. Can someone please help my baby? Here's some pictures of her.