MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Canister Purge Solenoid: Testing and Inspection
PURGE SOLENOID VALVE INSPECTION
Airflow Inspection
NOTE: Perform the following test only when directed.
1. Remove the purge solenoid valve. (See PURGE SOLENOID VALVE REMOVAL/INSTALLATION.)
2. Inspect airflow between the ports under the following conditions:
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If as specified, inspect the vacuum hoses for improper routing, kinks or leakage, and carry out "Circuit Open/Short Inspection".
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If not as specified, replace the purge solenoid valve.
Circuit Open/Short Inspection
Open circuit
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GND circuit (Purge solenoid valve connector terminal B and PCM connector terminal 3C through common connector)
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Power circuit (Purge solenoid valve connector terminal A and main relay connector terminal D through common connector)
Short circuit
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Purge solenoid valve connector terminal B and PCM connector terminal SC to GND