do 5.7 Chevy motors all have a crankshaft sensor even with a distributor?

Question

I am getting several codes p0300,p0338,p0463&p1361. The vehicle has been sitting awhile maybe 4 months, and when I started it the motor ran very rough. I had already bought most parts for a tune up a few months ago when it really wasn't running to bad, I though since it had been a while and not tuned up (2-3 years) it was time, there was a slight miss when I parked it but no check engine light yet. I have replaced with the parts that I had bought the cap, rotor, plugs, wires, coil, & ignition module tried cranking it over and there is no spark from the coil, so instead of buying parts I don't need I was thinking it could be the crank sensor or the pickup module in the distributor. If this motor has a crank module I think it is behind the starter (help) I just assumed most motors without a distributor had crankshaft modules, not the one with? any help would be greatly appreciated.

Answer 1

P0300 Random misfire

P0338 Crankshaft position sensor A circuit high input

P0463 Fuel level sensor circuit high input

P1361 Low voltage on ignition timing circuit

You have a CKP (crank position sensor) when you get a code for a CKP P1361 will also code up. For the no spark condition do the CKP and check along the harness of the CKP to make sure it is not cut in any way, Circuit high input means there is no connection.the location of the CKP is behing the front main pulley