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error code 315 850 1994

My 94 850 with 140,000 mil has error code 315 - EVAP emission control system fault which sets check engine light on.I am trying to check solenoid valve for purge control. What is the bast way to test it? If I disconect vaccum line from solenoid to intake manifod when the engine is cold and suck the air thru, should the solenoid be close or open? Any other areas I should chesk?

Thanks, Joe






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New error code 315 [850][1994]
posted by  someone claiming to be Joe  on Sat Jan 24 02:20 CST 2004 >


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