Evap purge valve connector: 4 volts?
#1
11-28-2011, 12:32 PM
Evap purge valve connector: 4 volts?
1999 civic EX coupe
Here's the history report:
-Getting code p1457: leak near evap canister.
-Found the vent shut valve was bad, replaced, worked great for about 3 weeks, then p1457 again.
-Retested the new vent shut valve, it was fine.
-Tested the purge valve using the methods illustrated in the factory service manual, it won't open while engine is hot and rpm > 3500. Actually it won't open regardless.
-Removed Purge Valve, bench tested it with a 12v battery, the valve opens!
-Tested for voltage between the two pins on the connector for the purge valve, there was voltage, but only 4 volts.
So now my question, is the valve supposed to open with only 4 volts, or do I have a bad ground somewhere?
Here's the history report:
-Getting code p1457: leak near evap canister.
-Found the vent shut valve was bad, replaced, worked great for about 3 weeks, then p1457 again.
-Retested the new vent shut valve, it was fine.
-Tested the purge valve using the methods illustrated in the factory service manual, it won't open while engine is hot and rpm > 3500. Actually it won't open regardless.
-Removed Purge Valve, bench tested it with a 12v battery, the valve opens!
-Tested for voltage between the two pins on the connector for the purge valve, there was voltage, but only 4 volts.
So now my question, is the valve supposed to open with only 4 volts, or do I have a bad ground somewhere?
Last edited by ssewall; 11-28-2011 at 12:34 PM.
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