Fuel Pump

NOTE: Fuel pump performance is a measurement of fuel pressure availability, not regulated pressure.

FUEL PUMP PERFORMANCE

Application

⁽¹⁾ psi (kg/cm² )

TBI

⁽²⁾ 34.1-39.8 (2.4-2.8)

PFI

⁽³⁾ 35.6-42.7 (2.5-3.0)

⁽¹⁾	Specification is listed with ignition on and engine off.

⁽²⁾	Pressure should remain at 21.3 psi (1.5 kg/cm² ) for one minute after fuel pump is turned off.

⁽³⁾	Pressure should remain at 25.6 psi (1.8 kg/cm² ) for one minute after fuel pump is turned off.

REGULATED FUEL PRESSURE

Application

psi (kg/cm² )

PFI

⁽¹⁾⁽⁴⁾ 29.8-37.0 (2.1-2.6)

TBI

⁽²⁾⁽³⁾ 34.1-39.8 (2.4-2.8)

⁽¹⁾	Specification is listed with engine idling.

⁽²⁾	Pressure should remain at 21.3 psi (1.5 kg/cm² ) for one minute after fuel pump is turned off.

⁽³⁾	Ignition on and engine off.

⁽⁴⁾	Pressure should remain at 25.6 psi (1.8 kg/cm² ) for one minute after fuel pump is turned off.