The code simply indicates that the EVAP emission control detects a leak
A PO455 code on a 2000 Dodge Stratus V6 means that there is a large leak in the gas tank or the fuel system. The leak is so great that fuel pressure cannot build up.
pcv valve problem?
More Information is needed to answer this question. What is the model of the car (town car, mark VIII, continental) and what is the engine type / size? (5.0 V8, 4.0 V6) Also is the code a P-Code? The Code should be a letter and 4 numbers (e.g. P0189 or P1890)
Vss is bad
Trouble code P1299 means: Cylinder Head Overtemperature Protection Active
evaporative leak
MAP sensor if I recall
Trouble code P1744 means: TCC system mechanically stuck in off position
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P1698 means: No CCD Messages Received From The TCM
P0700, code present in transmission computer.You need to have the tcm checked for codes.