2001 Dodge intrepid P1391 code?

what you need to be looking for is a frayed spot in the wire coming off the sensor those run across a few points that would cause the to get a bad spot in them and do the same thing yours is doing,if you find a bad spot in it do your self a favor and go to a salvage yard and get that section of wire to replace it with,those was bad to get damaged and when you replaced the sensor that temporarily displaced the wire,now that its settled back down it causing the same problem to reoccur,i see this a lot especially on the v-6 models,good luck with it.