For 1990-2009 cars

### Removal Procedure

1. Disconnect the three vacuum hoses from the exhaust gas recirculation (EGR) back pressure transducer.
2. Remove the EGR back pressure transducer from the retaining clips.

### Installation Procedure

1. Install the EGR back pressure transducer to the retaining clips.
2. Connect the vacuum hose from the EGR bypass valve to port Q of the EGR back pressure transducer.
3. Connect the vacuum hose from the EGR solenoid vacuum valve to port P of the EGR back pressure transducer.
4. Connect the exhaust port hose to the bottom port of the EGR back pressure transducer.