Fuel Injection Compression Pressure Test Meter Gauge Universal Tool Set

Comprehensive kit of hoses, adaptors and fittings for testing the pressure on modern petrol fuel injection systems. Fitted with quick couplings and safety valve to prevent inadvertent discharge of fuel under pressure. Pressure release valve fitted with long drain hose allows safe recovery of fuel. Supplied in carry-case. Fuel injected engines require precise fuel pressure as well as adequate volume. Without the correct pressure and volume, performance and fuel economy can suffer. Always consult the correct workshop manual or vehicle manufacturer for accurate specifications and testing procedures. When running tests, it may help to picture the fuel system as a circle. Fuel is pumped from the tank to the fuel regulator and injectors, and the unused fuel is then returned to the tank. The fuel regulator serves as a divider between the supply side and the return side. The adaptors supplied with this kit are suitable for use on most fuel injection systems fitted to American, European and Asian vehicles. There are three ways to check fuel pressure. First, many vehicles with PFI are equipped with a special test port. Simply connect the proper adaptor to the gauge assembly, thread the adaptor to the test port, and run the test. Second is an end of hose connection. Some older PFI systems have a flexible hose connection at the cold start injector. Connect the single barb fitting to a hose clamp to run the test. Also, some systems have fuel bolts or banjo type fittings as an access point. Third is in-line connecting. This means installing the proper adaptor(s) in series with the fuel line. unless a schrader-type test port is available, most manufacturers require that you relieve the fuel pressure before entering or leaving the system. To relieve the pressure, it may be necessary to remove the fuel pump connector, relay, or fuse. Some models may have two fuel pumps - make sureboth are disabled.

• Comprehensive kit of hoses, adaptors and fittings for testing the pressure on modern petrol fuel injection systems..
• Fitted with quick couplings and safety valve to prevent inadvertent discharge of fuel under pressure..
• Supplied with Ø92mm single high pressure gauge with rubber bumper, reading 0-140psi and 0-10bar..
• Supplied in carry-case..
• Fuel injected engines require precise fuel pressure as well as adequate volume..