Have codes P0340 and P0341, camshaft position sensor bank 1, and camshaft position sensor wiring harness. Replaced them with a camshaft position sensor from Parts Geek that cost only $35 and was made in China. OEM is nearly $200. Cleared message but after about 5 minutes to an hour the messages reappear. I have soldered the replacement CMP wires and there is power to the sensor. Do I need to go OEM? This is a 2000 XK8.

 

The consensus here is generally to avoid PartsGeek. You could try a breaker or online - there is a crossover with the X308 so there should be a good few about. Autoreserve has a pair for around $40 if you're not in a desperate rush:
https://www.autoreservejaguar.com/ca...t/?q=LRA1646DB

Shame they're handed else I'd have suggested swopping it with the other bank.

Has the cam cover for that side been removed & replaced recently?

 

Yes, the cam cover was recently replaced to install a new gasket.

 

There is a 'special-bolt' in the position near the CMPS for the cam cover fasteners.

I replace cam cover gaskets and find the bolts not put back in correctly from previous repairs but never had a DTC because of it.(but you never know?)

 

Thanks! I will check that. Guess it is non-magnetic.

 

Or shorter.

 

Thanks! I will check that. Guess it is non-magnetic.

 

I was wrong when said there is power to the cmp. Is only 2.2 mv. I will look it up but I believe it is supposed to be 4.5 volts or higher.

 

They do seem to be magnetic to some extent (I tried with a magnet), and they are slightly shorter. They are the only ones which are not captive in their spacer. See this post of BobRoy's:
https://www.jaguarforums.com/forum/x...3/#post1658791

It is possible that a longer bolt could impale the sensor:
https://www.jaguarforums.com/forum/x...3/#post1658513

I'd expect no or very little voltage across the sensor with the motor not running. They are similar devices to the ABS sensors.
You might be able to read something on a multimeter set to a low AC volts range with the motor running. The Electrical Guide states this: 0.7 – 1 VAC @ 1000 RPM = 43 Hz; 2000 RPM = 72 Hz