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Message: <blockquote data-quote="dbryan23" data-source="post: 29127" data-attributes="member: 12977">Last week I got a Service Engine light with a P1441 code on my 2001 Suburban 5.3... "EVAP system flow during non purge event".  I replaced the purge valve about a year ago due to another code.  I pulled the line from the valve, stuck a hose on it and tried to blow through it.  I couldn't really get any air through, but I thought it might be an intermittent failure of a cheap aftermarket purge valve, so I replaced it again.  The code came right back.  I had also ordered a vent valve a while back and never put it on, so I went ahead and did that.  It also has a fairly new gas cap.  The code came back again.What are my options at this point?  A hole/split in a hose?  A wiring issue?  A fuse?  Fuel tank pressure sensor?  Before I spend a lot of time trying to locate a leak, are there any other easy things to check?     It seems to run fine, but the exhaust maybe smells a little bit rich.</blockquote>