The fuel pressure regulator, which is between the engine and the fuel tank, does exactly what its name implies. It ensures that the amount of fuel pressure in a vehicle stays at an ideal level. A lot of problems may arise if your fuel pressure regulator isn't in good condition as it won't be able to keep fuel pressure in check. A faulty fuel pressure regulator can lead to abnormally high or low fuel pressure, both of which are bad news for your car. If the fuel pressure is too high, increased emissions, clogging, and misfiring, are some of the complications you may experience. If the fuel pressure is too low, your engine will have a difficulty in starting-if it can at all.
My fuel pressure regulator is broken. What replacement should I get?
When looking for a replacement, an OEM fuel pressure regulator should prove to be a great option. OEM fuel pressure regulators are generally reliable and very durable. They're also surprisingly affordable as regular ones would only set you back by around $30-$60. There are also adjustable variants. An adjustable fuel pressure regulator costs just a little more than a standard regulator. Both types of fuel pressure regulators are very easy to install, so you shouldn't worry about that no matter what type you buy.
Adjustable fuel pressure regulators? What's that?
If you're not into electronic fuel injection (EFI) tuning, you shouldn't bother getting an adjustable fuel pressure regulator as the regular version is more than enough for everyday driving. Adjustable fuel pressure regulators are basically designed for performance boosting purposes. It would be a waste to get one if you don't plan on extensively modifying or tinkering with your ride.