I noticed recently that when filling my tank the filler will kick out a lot even though the tank isn't full. Not even close to full. My CEL is on, throwing an o2 code that will be fixed... well when I get a job hopefully soon. Any ideas what could cause my filling problem though?

 

Clogged fuel filler vent tube.
Before you do anything make sure it happens at a different gas station too.

 

Yeah it's been happening for a couple months now.