Protege L4-1839cc 1.8L DOHC (1990)
If not, replace pressure regulator.
10.
Shut engine "OFF" and wait 5 minutes, then observe residual pressure on gauge.
Minimum 21 psi (147 kPa)
If not, 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.
