Mazda RX-8 Manual page 351

Shorting the wrong terminal of the check connector may cause malfunctions. Make sure to short
•
only the specified terminal.
8. Ground the check connector terminal F/P using the jumper wire.
9. Turn the ignition switch to the ON position and operate the fuel pump.
10. Measure the fuel line pressure.
If not within the specification, inspect or replace the following parts:
•
If it is less than the specification
Fuel pump unit
Fuel line leakage
If it is more than the specification
Fuel pump unit
Fuel line clogging
Fuel line pressure
375450 kPa {3.834.58 kgf/cm
o
11. Disconnect the jumper wire and stop the fuel pump.
12. Wait 5 min and measure the fuel hold pressure.
If it is within the specification, inspect the following.
•
Fuel line for clogging or leakage
Fuel hold pressure
200 kPa {2.0 kgf/cm
o
2
, 54.465.2 psi}
2
, 29 psi}
(w) Engine Specifications
Page 114