I have a 2000 blazer and i am wondering what the camshaft sensor does? And can this be tested anywhere "ie parts america" thanks Rob

 

The camshaft position (CMP) sensor is located within the distributor. The operation of the CMP sensor is very similar to the crankshaft position (CKP) sensor. The CMP sensor will provide one pulse per camshaft revolution (1X signal). The loss of this signal may not affect the driveability of the vehicle, but will affect the type of control the VCM has on the fuel injection system. If this signal is lost, the VCM will pulse the injectors bank to bank instead of each individual injector at a time. The VCM also utilizes this signal in conjunction with the crankshaft position in order to determine which cylinders are misfiring


What is the problem you're experiencing and why do you suspect the cam sensor?
I don't know that the sensor can be tested other than with a scanner connected to the data link with the engine running.

 

the reason i am thinking maybe somethinf is wrong with the camshaft sensor is i have 60lbs of fuel pressure at the schrader valve and great spark but no start. Can i open the throttle body and be able to see gas ? thanks