well we checked the solenoid valve the way i was shown here in this forum by nissan tech. it seems to be fine. when we put voltage acrosss the terminals ,air was able to flow through A & B. no voltage then no air flow, this is good. we also got 27 ohms across the terminals of the valve, i don't know what it should be though? any other ideas ? thanks still get codes 303 and1493.
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