My fuel pressure gage on the fuel rail shows a 5 psi difference between when it is cool under the hood and when it is warmed up. I set the static pressure at 45 psi when the engine was warmed up and it shows 50 psi when cool.
I also have a gage mounted on the hood. They both read the same when cold. But when the engine is at full operating temp the gage on the fuel rail reads 3 degrees less than the external hood gage. Has anyone else experienced this?
I also have a gage mounted on the hood. They both read the same when cold. But when the engine is at full operating temp the gage on the fuel rail reads 3 degrees less than the external hood gage. Has anyone else experienced this?