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9 CHECK SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
1. Turn ignition switch “OFF”.
2. Disconnect vacuum hose connected to swirl control valve control vacuum check switch.
3. Attach vacuum pump to swirl control valve control vacuum check switch.
4. Turn ignition switch “ON”.
5. Check voltage between ECM terminal 55 and ground under the following conditions.
SEF709X
OK or NG
OK © GO TO 10.
NG © Replace swirl control valve control vacuum check switch.
10 CHECK MASS AIR FLOW SENSOR
1. Reconnect harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 61 (Mass air flow sensor signal) and ground.
SEF298X
4. If the voltage is out of specification, disconnect MAFS harness connector and connect it again.
Then repeat above check.
OK or NG
OK (With CONSULT-II) © GO TO 11.
OK (Without CONSULT-
II)
© GO TO 12.
NG © Replace mass air flow sensor.
DTC P1130 SWIRL CONTROL VALVE CONTROL SOLENOID VALVE
Diagnostic Procedure (Cont’d)
EC-466
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