80 L5-2309cc 2.3L SOHC (NG) (1991)
If the actuator current is correct but the differential pressure is not correct, then the differential pressure regulator is faulty, or the restrictor orifice in the
lower chamber through-flow passage is plugged.
ACCELERATION ENRICHMENT CHECKING
Leave fuel pressure gauge(s) and DVM connected for this test.
1.
Start engine and run at approx. 2,500 rpm constant speed.
2.
Without changing throttle position, manually close full throttle switch and observe actuator current and control pressure.
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Actuator current should increase slightly and control pressure should drop slightly when full throttle switch is closed.