Re: code P0340 camshaft position sensor circuit malfunciton
Just thought I'd bring this back up to clarify something. Since this is for a '94, the cam position sensor is in the hole previously occupied by the distributor (on a 3.8 V6 at least), under the coil pack, and looks like a distributor's lower housing with the top cut off and a round plastic cap bolted on top.
Typically, for the P0340 code, you don't have to replace the entire assembly and can just buy the electronics (round plastic thingy), swap it out, plug it in and away you go.
Done it twice now on the '95 already.
You don't have to remove the coil mounting bracket, but it's much easier if you pull the coil pack off and lay it aside while you work on things.