Re: 2003 Dodge Caravan P0456 Quote Postbyjeff compton»Sat Oct 01, 2011 6:50 pm there's already a huge thread on here about that code on caravans! you most likely have a cracked vaccum line under the hood near the purge solenoid or under the van near the cannister!
The trouble code P0131 for example is a general sensor code. What most people will think of doing when they get this code is to install a new sensor with the hope that this will clear the error and turn off the MIL lights. The bad sensor could also trigger a P0301 misfire code. Som...