I am new to the fourm, my husband and I have an 03 CTS. We have need having intermittent starting problems, we read on here, that it was the Crankshaft Position Sensor. We replaced it today, and now it will not start at all. The fuel pump is working, but there is not fuel on the fuel rail. We are really not waiting to tow it and get it fixed by someone else..we like doing our own work. Oh yea, before we replaced the sensor we didn't have a code for the sensor, now we do and it won't start. Any help if very much appreciated. Thanks!