Went to get a stage 1 uploaded this morning. I scanned the car a few weeks ago and was error free, but wouldn't you know it the car threw a code today during the pre-check. The tuner won't progress until I get it fixed as it might aggregate the fault. I don't have any CEL or symptoms other than the code itself. 16825/P0441/001089 - EVAP Emission Control Sys: Incorrect Flow Possible Causes * Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) faulty/jammed * Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115) faulty/jammed * Evaporative Emission (EVAP) Canister Sealing faulty * Pipes between Tank Breathing and Throttle Body leaky/blocked In what order should I be tackling this? N80 valve looks easy to replace so maybe I should be starting with that? If anybody has some easy checks / tests I can do (I have VCDS) to help trace it I'd be very grateful.