Hi everybody, hope you guys can help me with this one. My van is 2003 GC SE. and my check enigne light is reporting the following codes. PO303, Cylinder 3(which spark plug it is); PO455 EVAP large leak; PO442 EVAP small leak no flow condition; I don't now if you guys had the same codes once, and probably lead me in the right direction. I need to pass inspection and I think it won't pass if I have the check engine light on!, besides I want to fix the problem. Where can I find the diagram of the cylinders and also a possible possible a picture of the evap system to look for leak, etc. Thanks for you help
mfahey
04-03-2008, 05:17 PM
Evap code could be the gas cap or there are several hoses underneath the driver's seat that have been known to split. Mine happened to be a hose behind the air cleaner that I just jammed together tighter.
You didn't mentioned mileage but you may be due for plugs and wires. Here is a thread to look at: http://www.dodgetalk.com/forums/showthread.php?t=194794&highlight=P0303
RetsaM
04-03-2008, 09:22 PM
And for you P0303 code,
I got the same thing,
Mine is a 2004gc with 55K Km on it and the TSB says change spark plug and wire.
I have just change all spark plug and problem solve.
Regards,
gera
04-04-2008, 01:24 PM
thanks guys for you replies, I will change the park plugs and go from there. By the ways do you guys know what are the cylinders firing numbers,
