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Home >> Isuzu >> 1991 >> Impulse RS >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications >> Fuel System >> Fuel Pump (Fuel Injected)

Fuel Pump (Fuel Injected)

FUEL PUMP PERFORMANCE

Application Unregulated Pressure psi (kg/cm2 ) Regulated Pressure psi (kg/cm2 )
Impulse
Non-Turbo (1) 35-38 (2.4-2.7) (2) 25-30 (1.7-2.1)
Turbo (1) 39-47 (2) Slight Drop
Stylus 35-38 (2.4-2.7) 25-30 (1.7-2.1)
(1) With ignition on and vacuum hose disconnected from pressure regulator.
(2) With engine at idle or with 12-14 in. Hg vacuum manually applied to pressure regulator.
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