RX7 2RTR-1308cc 1.3L MFI (1991)
If pressure is higher than the maximum specified, check fuel return line for kinks or restriction. If pressure is lower than the minimum specified,
check fuel filter. If filter and return line are OK and pressure is still not within the specified range, replace pressure regulator.
10.
Disconnect vacuum hose from fuel pressure regulator with engine idling.
^
Fuel pressure should increase when vacuum hose is removed.
34 - 40 psi (235 - 275 kPa)
If not, replace pressure regulator.
11.
Shut engine "OFF" and wait 15 minutes, then observe residual system pressure on gauge. After the specified off time, pressure should not drop
more than listed below.
Pressure drop - not more than 3 PSI
If pressure drops more than 3 psi, check for leaking fuel injector(s). If injectors are not leaking, replace pressure regulator.
If all test results are OK, fuel pump and pressure regulator are OK.
