Rodeo S 2WD L4-2.2L (1999)
Fuel Metering System: Description and Operation
Fuel Metering System Components
Accelerator Controls
Accelerator Controls
The accelerator control system is a cable-type system with specific linkage adjustments.
Refer to Cable Adjustment.
See: Throttle Cable/Linkage
Fuel Injector
Fuel Injector
The sequential multiport fuel injection (SFI) fuel injector is a solenoid-operated device controlled by the PCM. The PCM energizes the solenoid, which
opens a valve to allow fuel delivery.
The fuel is injected under pressure in a conical spray pattern at the opening of the intake valve. Excess fuel not used by the injectors passes through the
fuel pressure regulator before being returned to the fuel tank.
A fuel injector which is stuck partly open will cause a loss of fuel pressure after engine shut down, causing long crank times.
Fuel Pressure Regulator
Fuel Pressure Regulator
The fuel pressure regulator is a diaphragm-operated relief valve mounted on the fuel rail with fuel pump pressure on one side and manifold pressure on
the other side. The fuel pressure regulator maintains the fuel pressure available to the injector at three times barometric pressure adjusted for engine load.
It may be serviced separately.
For information on diagnosing fuel pressure conditions, refer to Fuel System Diagnosis.
See:
Fuel Pump Electrical Circuit
Fuel Pump Electrical Circuit
