REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Golf IV (1997 release)

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Volkswagen
	Golf 4
		Instructions
		Engine
		Cooling system
		Fuel System
			Cars with petrol engines
			Cars with diesel engines
				Direct fuel injection
				Fuel tank
				Technical data
				Checking the system of preliminary heating of the diesel engine
				Check glow plugs
				Removing and installing glow
				The system of heating fuel
				Fuel injectors
					Refitting
				The moment of injection of high pressure fuel pump
				The basic malfunctions of the engine management system
		Exhaust system
		Ventilation and heating system
		Coupling
		Transmission
		Suspension brackets and power shafts
		Steering
		Wheels and tires
		Brakes
		Body
		Electrical equipment and wiring

printable version

Fuel injectors

A warning

When testing the operation of fuel atomizers never substitute hands or any part of the body under the stream of fuel coming out of the nozzle. Fuel exits the injector at high pressure can penetrate into the body through the skin. It is recommended to charge a specialist work to verify the nozzles under pressure.

To determine the faulty injector, make sure that the engine is serviceable also compression level is identical in all cylinders.

Check

PERFORMANCE ORDER

1. Start the engine and warm it up to normal operating temperature.

2. Loosen the union nut of the fuel injector to the auditee. Note whether the changed engine speed.

3. When a working fuel injector will be a marked reduction in engine speed, accompanied by his uneven work. If the checked atomizer is faulty, change of turns of the engine will be insignificant and disappear if present earlier, extraneous knock.

4. The presence of a faulty fuel injector indicate the following deviations in engine work:
- Gaps in the cylinder;
- Knock on one or more cylinders;
- Engine overheating;
- Reduction of engine power;
- From the exhaust pipe is thick black smoke;
- Increase in fuel consumption;
- Blue smoke when starting a cold engine.

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Refitting