Inspect Boost Compensator Characteristic Tendency; Check Hysteresis - Toyota 1PZ Repair Manual

FUEL SYSTEM Injection Pump
15. (1HD-T)
INSPECT BOOST COMPENSATOR CHARACTERISTIC
TENDENCY
(a) Apply pressure to the boost compensator.
(b) Measure injection volume.
16. (1HD-T)

CHECK HYSTERESIS

(w/o BACS)
Compare the injection volume when the boost compensa-
tor pressure is lowered from 0.81 kg/cm
to 0 kg/cm
raised from zero.
(w/ BACS)
Compare the injection volume when the boost compensa-
tor pressure is lowered from 1.25 kg/cm
kPa) to 0 kg/cm
is raised from zero.
HINT: Make measurements after moving the adjusting
lever between idle and maximum three times for each
lowering of the pressure.
2
(0 psi, 0 kPa) and, conversely, when it is
2
(0 psi, 0 kPa) and, conversely, when it
FU-85
2
(11.5 psi, 79 kPa)
2
(18.3 psi, 127