Had to go to FL for a two week school with my job. Car sat while I was gone. Went for a ride Sat am, check eng light came on. Hooked up OBDII reader and got code 0456 (evac system leak, very small). Does anyone have any experience with this code?
We have had to do some ECM upgrades on some of the 05's for similar and also it could need a new LDP.(leak detection Pump), regardless just take it to the dealer. If it was a loose gas Cap it trather would have been a large leak.
On my of I was reading P2406 & P2407 codes after maxing out during a fuel stop. All they would do is keep resetting the fault light. Then they finally took me seriously when I told them that I know what the code meant. Turned out to be a faulty evap pump.