I have a 1998 Plymouth Grand Voyager. P0340 and P0353 are currently present codes were cleared and came back do you think its a wiring problem or both components are defective
P0340 : Camshaft Position Sensor Circuit Malfunction
P0353 : Ignition Coil C Primary/Secondary Circuit Malfunction
Looks to me like one of the coils needs to be replaced and would probably take care of the other issue. I would replace the coil/plug/wire ( which ever one you need) and then clear codes and test it again. You can swap around parts from one cylinder to the other to test them.