Pinpoint Test HC: Fuel Delivery System: Introduction: Notes

SAFE FUEL HANDLING PRACTICES  .

Gasoline, Methanol, and Methanol Blends  .

FIRE  .

• Report all fires to the appropriate authorities.
• Flames from methanol or methanol-gasoline blends can be invisible.
• Know the locations of portable fire extinguishers, fire blankets, fire alarms, and the eye/wash shower facilities. Know how to use them.
• Use a B or AFFF (light water) type fire extinguisher to fight flammable liquid fires.

FIRST AID  .

• If gasoline has been swallowed, do not induce vomiting. Seek medical attention immediately!
• If methanol or methanol/gasoline blend has been swallowed, induce vomiting under the direction of a physician or a Poison Control Center. Seek medical attention immediately!
• When overcome by vapors move the victim to fresh air, if safe. If not breathing, give artificial respiration or cardiopulmonary resuscitation (CPR) as appropriate. Seek medical attention immediately!
• If splashed in eyes, flush with large amounts of water for 15 minutes. Remove contact lenses, if worn. Seek medical attention immediately!
• If splashed on skin, remove contaminated clothing. Wash skin thoroughly with soap and water.

HEALTH  .

• All fuels can be harmful or fatal if swallowed.
• Be aware, if fuel is swallowed the onset of serious health effects can be delayed 12 to 24 hours.
• Fuels and products containing methanol (windshield washer fluid) can cause blindness if swallowed.
• All fuel vapors can be harmful if inhaled.
• All fuels can be harmful if absorbed through the skin.
• All fuels are irritating to the eyes and respiratory system.
• Some fuels made with gasoline contain benzene which is a cancer-causing agent.

HANDLING  .

• Use flammable liquid handling precautions.
• Wear chemical goggles and nitrile gloves. Additional protective clothing and equipment may be necessary in some instances.
• Keep flammable liquids in approved, labeled, closed containers.
• Use in well ventilated areas and control vapors. Be aware that vapors are not visible, are heavier than air, can travel along the floor, and settle in lower areas.
• When transferring flammable liquids, bond the receiving container to the source and ground the source to the earth.
• Do not smoke or use heat/spark producing equipment near vapors.
• Do not smoke, eat, or drink where these products are handled, processed, or stored.
• Never siphon by mouth.
• Wash hands thoroughly after handling any fuel.

SPILLS  .

• Notify the proper authorities in the event of any spill you are not trained to clean up.
• Stop, contain, and clean up small spills with an absorbent material.

This pinpoint test is intended to diagnose the following:

• Chassis components
• Engine vacuum
• Fuel pressure
• Fuel supply line
• Fuel supply
• Fuel injector(s) (9F593)

Application	Engine	Fuel System Type	FRP PID Fuel Pressure (kPa)	FRP PID Fuel Pressure (psi)
Focus	2.0L	ERFS (3)	240-485	35-70
Focus	2.0L PZEV	ERFS (3)	240-485	35-70
Focus	2.3L	ERFS (3)	240-485	35-70
Five Hundred / Freestyle / Montego	3.0L	ERFS (3)	240-485	35-70
Taurus	3.0L 2V FFV	ERFS (3)	240-485	35-70
Taurus/Sable	3.0L 2V	ERFS (3)	240-485	35-70
Taurus/Sable	3.0L 4V	ERFS (3)	240-485	35-70
LS	3.0L	ERFS (3)	240-485	35-70
LS/Thunderbird	3.9L	ERFS (3)	240-485	35-70
Mustang	4.0L	ERFS (3)	240-485	35-70
Mustang GT	4.6L 3V	ERFS (3)	240-485	35-70
Crown Victoria / Grand Marquis / Town Car	4.6L	ERFS (3)	240-485	35-70
Ford GT	5.4L	ERFS (3)	240-485	35-70
Escape/Mariner	2.3L	ERFS (3)	240-485	35-70
Escape/Mariner	3.0L	ERFS (3)	240-485	35-70
Ranger	2.3L	MRFS (2)	-	-
Ranger	3.0L	MRFS (2)	-	-
Ranger	3.0L FFV	MRFS (2)	-	-
Ranger	4.0L	MRFS (2)	-	-
Freestar	3.9L	ERFS (3)	240-485	35-70
Freestar/Monterey	4.2L	ERFS (3)	240-485	35-70
Explorer Sport Trac	4.0L	ERFS (3)	240-485	35-70
Explorer/Mountaineer	4.0L	ERFS (3)	240-485	35-70
Explorer/Mountaineer	4.6L	ERFS (3)	240-485	35-70
F-Series	4.2L	ERFS (3)	240-485	35-70
E/F-Series	4.6L	ERFS (3)	240-485	35-70
Aviator	4.6L 4V	ERFS (3)	240-485	35-70
E-Series	5.4L 2V	ERFS (3)	240-485	35-70
Excursion	5.4L 2V	RFS (1)	-	-
Expedition/Navigator	5.4L 3V	ERFS (3)	240-485	35-70
F-Series	5.4L 3V	ERFS (3)	240-485	35-70
E-Series	6.8L 2V	ERFS (3)	240-485	35-70
Excursion	6.8L 2V	RFS (1)	-	-
F-Series	6.8L 3V	ERFS (3)	240-485	35-70

Fuel System Type Definitions:

1. Return Fuel System:

   This type of fuel delivery system returns excess fuel to the fuel tank by means of a fuel return line from the fuel rail. Fuel pressure is controlled by a mechanical pressure regulator located on the fuel rail. Vehicles equipped with RFS do not use a fuel rail pressure (FRP) sensor.

2. Mechanical Returnless Fuel System (MRFS):

   This type of fuel delivery system does not return fuel to the fuel tank by means of a return line. Fuel pressure is controlled by a mechanical pressure regulator located on the fuel pump module in the fuel tank. Vehicles equipped with MRFS do not use a fuel rail pressure (FRP) sensor.

3. Electronic Returnless Fuel System (ERFS):

   This type of fuel delivery system does not return fuel to the fuel tank by means of a return line. This system does not incorporate a mechanical pressure regulator. Pressure is controlled by continuously varying the fuel pump speed through the fuel pump driver module (FPDM). All vehicles equipped with ERFS use a fuel rail pressure (FRP) sensor.