How to spot a bad fuel pressure regulator on fuel rail
If your car is idling rough or stalling out at stoplights, you might need to take a closer look at the fuel pressure regulator on fuel rail setups to see if it's actually doing its job. Most people don't think about this little component until their engine starts acting like it's possessed, but it's honestly one of the most important parts of your fuel delivery system. When it works, you don't notice it. When it fails, it can turn a simple trip to the grocery store into a stressful ordeal of sputtering and black smoke. ...