Electronic Fuel Injection (EFI)

1988 Toyota Corolla SR5, 4D WagonSECTION Electronic Fuel Injection (EFI)

All models are equipped with a Bosch AFC fuel injection system. An electric fuel pump provides fuel to the fuel pressure regulator. Pressure regulator maintains constant fuel pressure to the injectors.

The ECU controls the injection duration in accordance with engine conditions to provide efficient engine operation. For more information, see BOSCH AFC FUEL INJECTION article in the FUEL SYSTEMS section.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.