so... i bought a 2002 4.4, auto , with 170k miles. the only code that comes up is the p0343... i changed the passengers side with an oem cam position sensor i got at the local dealership... code came back, switched the drivers and passengers and code came back again.. i have on oder a new disa valve and a new diaphram for the ccv, and intake gaskets as well.. any idea why the code keeps coming back? i also have an airbag light and brake and abs lights on .