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13 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected.
2. Remove hose from EVAP control system pressure sensor.
3. Turn ignition switch ON.
4. Use pump to apply vacuum and pressure to EVAP control system pressure sensor as shown in figure.
5. Check input voltage between ECM terminal 62 and ground.
SEF894U
MTBL0246
CAUTION:
쐌 Always calibrate the vacuum pump gauge when using it.
쐌 Do not apply below −20 kPa (−150 mmHg, −5.91 inHg) or over 20 kPa (150 mmHg, 5.91 inHg) of pressure.
CAUTION:
쐌 Never apply force to the air hole protector of the sensor if equipped.
SEF799W
쐌 Discard and EVAP control system pressure sensor which has been dropped from a height of more than 0.5m
(19.7in) onto a hard surface such as a concrete floor; use a new one.
OK or NG
OK 䊳 GO TO 14.
NG 䊳 Replace EVAP control system pressure sensor.
14 CHECK RUBBER TUBE
Check obstructed rubber tube connected to EVAP canister vent control valve.
OK or NG
OK 䊳 GO TO 15.
NG 䊳 Clean, repair or replace rubber tube.
DTC P0450 EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
PRESSURE SENSOR
VG33E
Diagnostic Procedure (Cont’d)
EC-994
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