SISCO fuel pressure tester is designed for checking fuel injection pump pressure and fuel flow easily and quickly. The fuel injection pressure tester set is equipped with a variety of golden connectors, hoses and connectors, it is compatible with the interfaces of fuel systems of different models and can easily meet diverse testing needs.
Sophisticated Dial Design
Orderly Storage and Easy Management
SISCO fuel pressure gauges are used to monitor and diagnose the fuel system in vehicles and machinery, ensuring the fuel pump and regulator deliver the correct pressure. It is commonly applied in cars, motorcycles, sports car, trucks, off-road vehicles, and agricultural equipment to maintain engine performance, improve efficiency, and quickly identify fuel system problems.
Model | SISCO-FPG-TU114 |
Diameter of the Gauge | 80mm |
Measuring Range | 0-140 psi |
Fuel Injection Type | For most fuel injection systems |
Accuracy | ±2 psi |
Size | 275*200*55mm |
Weight | 1.5kg |
Q1: What is a fuel pressure gauge?
A1: A fuel pressure gauge is a diagnostic and monitoring instrument designed to measure the pressure within a vehicle’s fuel system, ensuring that the fuel pump and regulator are supplying the engine with the correct amount of fuel for efficient operation. By providing accurate pressure readings, it helps mechanics and vehicle owners quickly identify issues such as weak fuel pumps, clogged filters, leaking lines, or malfunctioning regulators that could cause hard starting, poor performance, or even engine damage. Fuel pressure gauges come in both mechanical and electronic types, with mechanical gauges typically used for quick under-hood checks and electronic gauges often paired with sending units for real-time, in-cabin monitoring. They are widely used across different applications, from carbureted engines that require low-pressure readings to modern EFI systems and high-performance or diesel engines that demand higher pressure ranges, making them an essential tool for both troubleshooting and ongoing performance management.
Q2: Why do I need a fuel pressure gauge?
A2: You need a fuel pressure gauge because it plays a crucial role in ensuring that your vehicle's fuel system is operating at the correct pressure, which is vital for proper engine performance, fuel efficiency, and long-term reliability. Without the right fuel pressure, your engine may experience hard starting, rough idling, hesitation during acceleration, misfires, excessive fuel consumption, or even stalling, all of which can lead to costly repairs if not addressed promptly. A fuel pressure gauge allows you to quickly and accurately diagnose whether problems are caused by a weak or failing fuel pump, a clogged fuel filter, a leaking fuel line, or a faulty pressure regulator, saving time during troubleshooting and helping prevent unnecessary part replacements. For performance enthusiasts and diesel or high-horsepower applications, a fuel pressure gauge is also an important monitoring tool, giving you real-time feedback to ensure the engine is always supplied with adequate fuel under varying loads and driving conditions.
Q3: Where do I put fuel pressure gauge?
A3: A fuel pressure gauge can be installed in different locations depending on whether it is used for temporary testing or permanent monitoring. For diagnostic purposes, it is commonly connected to the Schrader valve on the fuel rail, spliced inline with the fuel line, or attached to the test port on the fuel pressure regulator. For long-term use, the gauge may be mounted under the hood for quick visual checks, or paired with an electronic sending unit that transmits readings to a gauge inside the cabin, allowing the driver to monitor fuel pressure in real time. This electronic setup is preferred for safety, since it avoids the hazard of running a raw fuel line into the passenger compartment.
Tips: Can a fuel pressure gauge help with hard-start issues?
Yes, a fuel pressure gauge can be very helpful in diagnosing hard-start issues. Hard starting is often related to fuel delivery problems, such as low pressure, a weak fuel pump, a clogged fuel filter, or a leaking fuel pressure regulator. By connecting a fuel pressure gauge to the fuel system, you can quickly measure whether the pressure is within the manufacturer’s specified range. If the reading is too low, it may indicate restricted flow or a failing pump, while excessively high pressure could point to a faulty regulator. Monitoring the pressure during engine cranking also helps determine if the system is holding enough pressure to start the engine reliably. This makes a fuel pressure gauge an essential diagnostic tool for pinpointing fuel-related causes of hard-start conditions.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.