my CEL came on the other day and the code I am getting is P0451 - EVAP System Pressure Sensor/ Switch Circuit Range/ Performance. I have notice it is burning more gas. When I look up this code most peoples solution is to replace the Tank Pressure Sensor TPS but from what I can see is that the 2012 Mazda5 does not have one. Do you think it might be the front or the back Canister Purge Valves parts LF82-18-740 or LF3T-18-741? Has anyone else had this problem? Here are some readings from my OBD2 reader.