Inspection Of Turbocharging Pressure Sensor

1. INSPECT POWER SOURCE VOLTAGE OF

TURBOCHARGING PRESSURE SENSOR

(a) Disconnect the pressure sensor connector.

(b) Turn the ignition switch ON.

(c) Using a voltmeter, measure the voltage between terminals VC and E2.

(d) Reconnect the pressure sensor connector.

2. INSPECT POWER OUTPUT OF TURBOCHARGING

PRESSURE SENSOR

(a) Turn the ignition switch ON.

(b) Disconnect the vacuum hose of the intake manifold (chamber) side.

(c) Connect a voltmeter to terminals PIM and E2 of the ECU, and measure and record the output voltage under ambient atmospheric pressure.

(d) Apply vacuum to the pressure sensor in 100 mmHg (3.94 in.Hg, 13.3 kPa) segments to 500 mmHg (19.69 in.Hg, 66.7 kPa).

(e) Measure voltage drop from step (c) above for each segment.

Voltage drop

Applied

Vacuum

100

200

300

400

500

mmHg

3.94

7.87

11.81

15.75

19.69

in.Hg.

13.3

26.7

40.0

53.3

66.7

kPa

Voltage

0.15-

0.4-

0.65-

0.9-

1.15-

drop V

0.35

0.6

0.85

1.1

1.35

Electronic Control System FI-172 EFI SYSTEM - (EGR Gas Temperature Sensor (3S-GTE and 5S-FE (CALIF, only)))

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