Originally Posted by cetane

They replaced the air temp sensor but when I picked the car up it was showing code P0405 which my code scanner says is "EGR Sensor A Circuit Low". This is different from the EGR-related code it was showing before which was P0401. Maybe they are trying to make me pay for the EGR repair by unplugging something? They already ordered the part from Germany and charged me a $250 part deposit. I honestly don't know how else I could have one EGR code before I brought the car in and another EGR code when I picked it up.