Celica Liftback L4-122 1998cc 2.0L DOHC Turbo (3S-GTE) (1992)
Reading Fuel Pressure
- Turn the ignition switch ON.
- Measure the fuel pressure.
Fuel pressure:
226 - 265 kPa (2.3 - 2.7 kgf/cm2, 33 - 38 psi)
- If pressure is high, replace the fuel pressure regulator.
- If pressure is low, check the following parts:
^ Fuel hoses and connection
^ Fuel pump
^ Fuel filter
^ Fuel pressure regulator
- Remove jumper wire.
- Start the engine.
Reading Fuel Pressure - No Vacuum To Regulator
- Disconnect the vacuum sensing hose from the fuel pressure regulator, and plug the hose end.
- Measure the fuel pressure at idle.
Fuel pressure:
226 - 265 kPa (2.3 - 2.7 kgf/cm2, 33 - 38 psi)
Reading Fuel Pressure - Vacuum To Regulator
- Reconnect the vacuum sensing hose to the fuel pressure regulator and plug the hose end.
- Measure the fuel pressure at idle.
Fuel pressure:
186 - 216 kPa (1.9 - 2.2 kgf/cm2, 27 - 31 psi)