I've got my obd2 ecu back in, because I have to go through emissions. I needed to drive the car around some so the ecu would show up as ready to connect to the emmisions computer. In the proces I'm now throwing code 92(Evaporative Emission Control System, insufficient purge flow) . After spending the last hour or so trying to figure out what causes this, no one ever seems to get this code. So who's got some ideas.