I had a code 41 on the way home today and when I shut the engine off , It would not re-start. I believe that is the Cam sensor error code ? Where can you get replacement cam shaft sensor (just the upper assembly) ?
Got power to the cap I had a wire break at the plug on the engine side of the connector took me a while to figure that one out the insulation was still intact grab your volt meter and start checking both sides for continuity.
If you just need the camshaft sensor cap, the best place to look is on ebay. I just recently seen one for $50.00 on there. Enter in the search area what you are looking for like this."camshaft position sensor buick grand national" and it will show up at the top or near the top of the list. Those caps are going for around $200.00 now so i wouldn't wait to long before searching for that one at $50.00 if you do need it.
It's weird but if you enter anymore info in the search area about the camshaft position sensor it won't show up.