For 1990-2009 cars

### Removal Procedure

1. Remove the throttle body fuel injection unit. Refer to Throttle Body Assembly Replacement .
2. Disconnect the early fuel evaporation (EFE) heater (1) electrical connector.
3. Remove the EFE heater (1) and the gasket from the intake manifold.

### Installation Procedure

1. Install the EFE heater (1) and a new gasket to the intake manifold.
2. Connect the EFE heater (1) electrical connector.
3. Install the throttle body fuel injection unit with a new gasket to the EFE heater. Refer to Throttle Body Assembly Replacement .