With Manual Transaxle

EGR Boost Sensor:

NOTE: The following vacuum and pressure values are indicated by relative pressure from atmospheric pressure.

Special Service Tool (Engine Signal Monitor):

1. Connect the Special Service Tool (SST) to the Powertrain Control Module (PCM) as shown.

CAUTION: Do not apply a vacuum or pressure outside of the specified limits. Doing so will damage the EGR boost sensor.

2. Apply pressure then a vacuum to the EGR boost sensor according to the following procedure.

EGR Boost Sensor Specifications:

3. Decrease the applied pressure from +3.7 kPa (+1.1 in.Hg) to -86.3 kPa (-25.5 in.Hg) and verify that the PCM terminal 3H voltage decreases linearly.

NOTE: The output voltage will change according to the measuring condition.

Measuring condition:
- Input voltage - 5.12 V
- Atmospheric pressure - 101.3 kPa (29.9 in.Hg)
- Outside temperature - 25°C (77°F)

4. If not as specified, perform the following inspection.
Harness continuity
- Between PCM terminal 30 and EGR boost sensor terminal A
- Between PCM terminal 3H and EGR boost sensor terminal B
- Between PCM terminal 31 and EGR boost sensor terminal C

EGR Boost Sensor Connector:

Terminal voltage (Ignition switch ON)
- EGR boost sensor terminal A voltage: Ground (Below 1.0 V)
- EGR boost sensor terminal C voltage: Constant voltage (4.5-5.5 V)

5. If terminal voltage is correct and there is harness continuity, replace the EGR boost sensor.