Since putting in the rebuilt engine I keep throwing the same codes-
p0342 camshaft position sensor circuit low voltage
p0343 camshaft position sensor circuit high voltage
Looking at GM's service info at work it looks like it could be one of the following-
wiring
bad sensor
pcm
Damaged reluctor ring on camshaft
I was hoping the faults were thrown because the truck hasnt been tuned for the cam, but I have done a search and really havent come up with anything like that. Only a few post found related to this code and no answers as to what remedied the problem.
The truck is down right now with the transmission out, so I cant really check anything on it til I get it back together. The engine has approx 90 miles on it so far and set those codes just about everytime i drove it.
Anyone ever run across this before??

 

I seem to remember a post regarding this in the car threads. You might need to re-teach the cam sensor, there is a method for doing this. Also check to make sure the harness ground next to the cam sensor is attached. I think this caused grief to others in the past.
Sorry I have no more info but try posting in the LS1/LS1 internal section.

 

When I get it back on the lift to put the transmission back in I will check all the wiring and replace the sensor too. I'm trying not to think about it being a problem with the cam Hopefully its just a bad ground or sensor.

 

well that blows. i didn't have any issues with mine, but, if you need to do the relearn, i believe it can only be done with a TECH-2. i would check the things you listed first leaving the reluctor for the last "oh ****" check.

 

I dont think you have to relearn cam position. I know sometimes you have to learn crank position though. I'll check on that about cam position when I get to work tommorrow. I hope like hell its not an internal problem. Trucks been down almost a year now and so close to getting it back together. My luck seems to really suck at times.

 

have patience young jedi! good things come to those who wait.