I am currently, dealing with this issue. I have been reading different P0340 threads. And I'm hoping it's not related to the timing chain being stretched. Current Code is P0340.
Car runs fine, no issue. Other than MIL will display just a little after the car has be on.
Any suggestions?

 

The P0340 points to camshaft position sensor, check it’s wiring .
remove the valve cover check the timing chain for stretch and the front guide for damage.

https://www.obd-codes.com/p0340

 

P0340 is "intake camshaft position sensor CIRCUIT" That means something in the wires, including the coil of wires inside the sensor.
The first thing I would do is unplug and replug the sensor, then trace the wires with my fingers and eyes. If you have a DVOM check if there is resistance between the terminals of the sensor; none = bad.

 

Thank you both for the advice, will look and try these suggestions.

 

I checked for continuity at sesnors and connectors, of the intake camshaft and exhaust camshaft. Both readings are the same, sesnors are 11.6 ohms, connectors were 5.4m ohms, camshaft position sensor connector was 3.4k ohms at the white and green wire of the connector. I replaced the camshaft position sensor.
Is there a schematic for camshaft position sensor connector and where it leads to it? Looks like it leads to a module.

 

Do you mean the crankshaft position sensor?

 

The camshaft sensor connects to the ECM.

 

Why would the crankshaft position sensor have anything to do with this?

Where exactly was the 3.4K Ohm resistance? Between what to points?

You're barking up the right tree chasing this with an Ohm meter. Keep in mind it's an old car and there can be corrosion inside wire when the insulation looks fine.

 

Unless you load test those circuits the only valid test is that which fails.

 

3.4k ohms was at the camshaft position sensor connector wire green and white.
I don't know where is the other end of the camshaft position sensor wires.