<b>JIFETOR DELUXE PROFESSIONAL FUEL INJECTOR PUMP PRESSURE GAUGE KIT</b><br>1x 4" Large Dial Pressure Gauge<br>1x 43"L Long Hose with Drain hose and Quick Coupler<br>6x Hoses with Brass Fittings<br>31x Adapters<br>7x Cut Hoses<br>1 Bag Small Parts<br>1x Instruction<br>1x Red Blow Molding Case, 17"L x 15"W x 4"H<br><br><b>NECESSARY FUEL OIL INJECTION PRESSURE TESTER TOOL</b><br>Testing fuel pressure is an essential part of the troubleshooting process of fuel injection system. Proper fuel pressure is vital for engine operation and performance<br>Too high fuel pressure can cause the engine to run too rich, incomplete combustion, excessive fuel consumption, increased carbon buildup, exhaust exceeding the standard<br>Too low fuel pressure will lead to a lack of horsepower, stalling, and a slow or no-start condition<br><br><b>NOTE</b><br>1.Please wear gloves and goggles when use<br>2.This auto fuel oil engine diagnostic gauge injection pressure tester set should be used by professional or under the guidance of a professional<br>3.Always refer to equipment manufacturer's operation instruction, compare to the manufacturer's recommended readings<br>4.Before making connections and testing, place a dry chemical (Class B) fire extinguisher nearby<br>5.Gasoline is highly flammable. Do not smoke, or test near open flames or a source of electrical sparks. Do not allow gasoline to come in contact with the hot manifolds or other engine components<br>6.Perform service in a well-ventilated, outdoor location. Not only are gasoline fumes flammable, but carbon monoxide is produced by a running engine. This is a deadly gas that you cannot see or smell<br>7.Make sure all connections are tight to avoid fuel leaks. Or use PTFE tape if needed