Tomei fuel pressure regulator
If you have issues with your fuel pressure regulator, it is most likely that your car displays multiple different signs. Have your fuel pressure regulator replaced with such reliable regulators as Tomei fuel pressure regulator among others if you are sure that it has failed without any shadow of doubt. Maybe you are asking, “What are the signs that your fuel pressure regulator has gone bad?” Check out for some of these symptoms:
Blackened spark plugs
To know whether your spark plugs are blackened, just remove them one at time and check the ends carefully. If the ends are sooty, it might imply that your fuel pressure regulator is bad. In case you find that one of the spark plugs is in such a condition, or even several of them, it means that engine oil is being burnt at that head.
If you have to replace the fuel pressure regulator, it is advisable that you replace your spark plugs too. If it is not a must you change them, then make sure that you clean them thoroughly and then put them back .But if your vehicle’s engine is still running poorly, just get new ones.
Your engine does not run smoothly
Talking of a poor engine performance, in case your engine is not smoothly running once you idle it, say it is spitting and sputtering as if it is about to die, then your regulator is not functioning as expected.
Problems when starting
Another problem that indicates a failing fuel pressure regulator is poor starting of the engine. Sometimes it fails to turn over before it starts.
Gas in the line
If you note any of the symptoms mentioned above, and you are still not convinced that the fuel pressure regulator is bad, remove your vacuum hose attached to the regulator while the engine is still running. If you see some gas in the line, then the regulator is bad. You can go ahead and replace it with Tomei fuel pressure regulator that come with an original gauge, or shop for another regulator that suits your vehicle.