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Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
[2235ERA]
£182.04
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge

Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit - NEW

Comprehensive kit of adaptors and fittings for modern fuel injection systems. Components fitted with quick coupling system and safety valve to prevent inadvertent discharge of fuel under pressure. Kit supplied with large high pressure gauge reading 0-145psi and 0-1000kpa and a small low pressure gauge for accurate low pressure readings. Pressure release valve fitted with long drain hose allows safe recovery of fuel.

GENERAL INFORMATION

Because fuel systems and access points are so varied, it is impractical to list all of the applications. Always refer to a reliable shop manual, or the car manufacturer for the recommended test procedure and access points.

There are two basic types of fuel injection systems.

Port Fuel Injection (PFI) uses separate injectors to supply the fuel to each cylinder.

Throttle Body Injection (TBI) injects fuel from a position above the throttle plate on the intake manifold. On both systems there is a supply side, which brings fuel to the injectors, and a return side which brings unused fuel back to the tank.

Basically, there are three ways to check fuel pressure.

First, many domestic cars 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 our single barb fitting with a hose clamp to run the test. Also, some systems have fuel bolt 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 sure both are disabled.

After the pump(s) are disabled, run the engine until it stalls, then try to restart it for five to ten seconds. The system is now ready for testing. Once the proper adaptors and gauge are in place, reactivate the fuel pump and run tests. When finished testing, repeat above procedure before removing tester.

BASIC DIAGNOSIS

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 repair manual for accurate specifications. 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. Lower than recommended pressure usually indicates a problem on the supply side of the circle. Likely causes would include a damaged or restricted fuel line, clogged fuel filter, defective fuel pump or regulator, or improper tank ventilation. Higher than normal pressure usually indicates a problem on the return side of the circle. Likely causes are a damaged or restricted fuel line, poor venting of the tank, or a defective fuel regulator. You may be able to pinpoint problem areas on the return side by resetting. For example - by removing the return line near the fuel regulator and putting the fuel line into a proper container, a retest that still shows a high reading would indicate a faulty regulator. If the reading would drop into the normal range, you know that problem is further down the return line or the tank. Again, always consult the manufacturer of the vehicle, or a good repair manual for specific trouble-shooting procedures. When testing is completed, make sure the fuel line is reassembled correctly. Replace any o-rings or washers, and follow the manufacturer's recommendations for proper torque on any bolts or connections. Check the entire system thoroughly for any leaks. Following are some typical test procedures for different models.

FUEL PRESSURE TESTS FOR GENERAL MOTORS (TYPICAL)

CAUTION: Fuel system test begins with checking fuel injection system pressure. High fuel pressure may be present in fuel lines and components. Relieve fuel pressure before disconnecting any fuel system components. FUEL PRESSURE CHECK FOR TBI

1. Disconnect negative battery cable. Remove fuel filler cap. Since these TBI units contain an internal bleed-down feature, after a short time, system fuel pressure should dissipate. 2. Remove air cleaner and plug thermal vacuum port on throttle body. When removing fuel line, always use 2 wrenches. Install Fuel Pressure Gauge and Adaptor in fuel system between steel line and flexible hose. CAUTION: DO NOT pinch off fuel return line completely. DO NOT exceed pressure build-up of more than 13 psi. as regulator may be damaged. 3. Start engine and observe fuel pressure reading. Fuel pressure should read 9-13 psi. (if fuel pressure is okay, proceed to step 4). If fuel pressure is low, gradually pinch off fuel return line to fuel tank. If pressure remains low, check and/or replace fuel filter or fuel pump. If pressure increases to greater than 13 psi, replace fuel pressure regulator. 4. Allow fuel pressure to dissipate. Remove pressure gauge and reconnect fuel line. Start engine and watch for fuel system leaks.

FUEL PRESSURE CHECK OF PFI 1. Disconnect fuel pump at rear body connector (electrical). Start engine and run engine until it stalls. Crank starter for 3 seconds to remove remaining fuel from fuel lines. Reconnect rear body connector. 2. Connect Fuel Pressure Gauge to fuel pressure fitting on fuel rail. 3. Reconnect fuel pump. 4. With gauge installed at fuel rail connector, turn ignition on. With ignition on and engine off, pressure should read within specifications. 5. Start engine. Pressure should drop 3-10 psi.

FUEL PRESSURE CHECK OF PFI 1. Disconnect fuel pump at rear body connector (electrical). Start engine and run engine until it stalls. Crank starter for 3 seconds to remove remaining fuel from fuel lines. Reconnect rear body connector. 2. Connect Fuel Pressure Gauge to fuel pressure fitting on fuel rail. 3. Reconnect fuel pump. 4. With gauge installed at fuel rail connector, turn ignition on. With ignition on and engine off, pressure should read within specifications. 5. Start engine. Pressure should drop 3-10 psi.

FUEL PRESSURE TEST FOR TBI 1. Disconnect wiring at inertia switch. Inertia switch is located behind trim panel in right rear side of cargo area on Sable and Taurus station wagons and behind trim panel on left side of trunk on all other models. Crank engine for at least 15 seconds to reduce system fuel pressure. 2. Disconnect fuel supply line at throttle body. Install in-Line Adaptor and fuel Pressure gauge at fuel filter. Reconnect inertia switch and start engine. Check fuel pressure at idle and when accelerating engine. Pressure should remain stable through entire period of acceleration. 3. If gauge readings are correct, disconnect inertia switch. Crank engine for 15 seconds to reduce fuel pressure. Remove gauge and in-line adaptor. Install original fuel line and connect inertia switch. Start engine and check for fuel leaks.

FUEL PRESSURE TESTS FOR CHRYSLER (TYPICAL)CAUTION:

FUEL PRESSURE RELEASE

TBI FUEL PUMP TEST

PFI FUEL PUMP TEST

NOTE: Perform fuel pump test with fuel tank at least half full. Before disconnecting a fuel line during testing, repeat fuel pressure release procedure.

FUEL PRESSURE TESTS FOR HONDA/ACURA (TYPICAL)

CAUTION: High fuel pressure may be present in fuel lines and component parts. Relieve pressure before attempting to open system for testing or component replacement. DO NOT allow fuel to run onto engine or electrical parts, or allow an open flame in area while testing fuel system components. Basic diagnosis of fuel system should begin with determining fuel system pressure. If fuel pump fails to run, inspect power supply to main relay. If all power supplies are present (i.e. battery, ignition and starter switch during cranking), perform functional test of main relay.

RELIEVING FUEL PRESSURE

PRESSURE TESTING

FUEL PRESSURE TESTS FOR TOYOTA (TYPICAL)

CAUTION: High fuel pressure may be present in fuel lines and component parts. Relieve pressure before attempting to open system for testing or component replacement. DO NOT allow fuel to run onto engine or electrical parts, or allow an open flame in area while testing.

FUEL PUMP QUICK TEST

FUEL SYSTEM PRESSURE TEST.

FUEL SYSTEM PRESSURE TEST.

FUEL SYSTEM PRESSURE TEST.

FUEL PUMP CIRCUIT

VISUAL CHECK

VISUAL CHECK

FUEL PRESSURE TESTS FOR L-JETRONIC (TYPICAL)

RRP - £129.99

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Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
Neilsen Professional Comprehensive 41 Piece Fuel Injection Pressure Test Kit 2235ERA *Out of Stock*
Click to enlarge
This product was added to our catalog on Sunday 04 July, 2010.
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