ok guys, i returned my car back to stock some time ago. i had been getting a p0546 code while all the stock heatshields were off. put them back on today, reset the ecu with an obdII scan tool and guess what?? still getting a p0546. could i have overtightened the egt sensor when i reinstalled it in the factory up pipe? any other ideas on what it could be would be appreciated. i do not want to do the 2.2k ohm 1.4-1.2 watt resistor as of right now, i want to figure out the problem with the car because it is totally stock down to the factory intake silencer so it should not be setting these codes. any help would be appreciated.