the low fuel light on my E420 strated to flash a while ago and eventually triggered the check engine light.
I check on the forum about the gas cap not being tight but that didn't solve the problem. I disconnected the battery twice hoping it will go away but both times the check engine light came back on.
I just bought a obdII auto scanner from ebay and its now giving me the following codes.
P0170 Fuel Trim Malfunction (bank 1)
P0173 Fuel Trim Malfunction (bank 2)
P0455 EVAP Emission Control System Leak (Large)
Can someone please tell me what could be the problems and approx how much will it cost to fix it?