Defi Link Meter - Manual (Page 32)

85
FUEL PRESS.
Use a commercial three-way joint and hose unions
●Be sure the sensor wire is not twisted when installing the sensor. The sensor wire will be cut.
●The sensor must be installed on the feed（high pressure）pipe side between the
fuel tank and the fuel pressure regulator.
＊It is not possible to obtain accurate fuel pressure from the return（low pressure）
side at the rear of the fuel pressure regulator.
●The thread size of hose unions and the three-way joint need to be 1/8PT.
If the thread size of the three-way joint is 1/8NPT, you will need the 1/8NPT / PT
conversion socket(optional part). If it is neither 1/8PT nor 1/8NPT, you will need
to purchase a conversion adapter available from hardware stores.
●Tighten the sensor into the sensor attachment and then connect it to the sensor wire.
Fuel pressure regulator
Three-way joint
(commercially available)
＊Cut the fuel feed pipe and
install hose unions.
Fuel return pipe
（low pressure）
Hose union
(commercially available)
Fuel feed pipe（high pressure）
Sensor
To sensor wire
↑
Wind Teflon tape.
Fix tightly with
clamps.
（commercially
available）
Thread size 1/8PT
Be sure not to
twist.
WARNING
●To avoid fuel leaks during installation of the sensors, use Teflon tape. Attach hose
connection and fuel feed tubing with a T-Bolt clamp. Inspect pipes and hose
connections for leaks before driving.
●Before cutting the fuel feed pipe, be certain to remove the gas cap to relieve any
pressure built up in the fuel tank.
●When cutting the fuel feed pipe, be certain to discharge static electricity.
Otherwise, there is a possibility of the ignition in gasoline.
●To avoid the damage of sensor wire, please fix the waterproof connector on the
vehicle body.
CONFIRMATION