No start condition

The only code was for the cam sensor, I forget the number. Do I have to reprogram it like I did for the crank sensor? It was running just fine until I changed out the cam sensor. It would start right up with no cranking time at all before starting. Do you know if I have to reprogram the cam sensor to the PCM? I had to go through all of that when I put in my crank sensor last year. It would not start then either just turn over. And I know that the cam and crank needs to talk with each other.

Thanks, I'll look at what you sent. As far as what I said about reprogramming the CKP, that was wrong now that I thought about it and you said what you just told me, I remember doing that variation learn because of trying to disconnect the chime bell for the ignition and I pulled off the wire for the GM security system. I locked myself out of starting the unit once I turned it over to start. I had to learn all about that and learned how to relearn the system. It worked on the second try.
I read a couple of days ago about the cam sensor and how it will allow you to run but run rough. And how it's used for a misfire. Last year I had a misfire on the #6 and #4 and could not figure out why. I replaced the heads because I blew a gasket and when I put it back together I bent over two pins in the plenum for the injectors and didn't know it until this year when I went looking at different things for misfires. I've been learning how to be a better mechanic as I go on. I'm retired and have all the time in the world. So far I have changed out the whole top of the engine. I should of done the cam but maybe next year I know it's under specs on the lobs. I have a INNOVA 3130c scanner and it does not show any codes for now. And as far as having fire to the plugs goes, I checked out every plug and wire for fire with a spark tester and all have spark. So unless I'm missing something here, I would think that plug, wire, coil, ICM, cap and rotor should be good, right? It acts like it wants to start but just can't jump over the start line. Today I sprayed starter fluid in the intake but it acted like it wanted to go but only backfired and did nothing.
Here another question for ya: Last year when I talked to you or some one at 2CarPros about a problem I was having with low fuel pressure showing only 48 psi. And you said to change out the fuel pump, but I told that person that it was a new pump but was told that it didn't matter if it's new or not to change it out. So now I put in a another new fuel pump and it shows 45 psi. This is a bit upsetting being another new pump. What could be doing this? And I did a voltage drop test on the fuel pump to only find out that it's off by 2.4 v off on the positive side. The negative side was alright. I figure that all of this is somehow linked up somewhere. Thank you for all the help!

Jerry

Thank you for the reply and the time that you spend talking with me on this problem. The timing might be off but like I said earlier, it started up pretty quick with out any problems before so not starting now has me really shaking my head. As far as the timing goes, I use the balloon method that was on YouTube and it works pretty good. Once I get a brake in the weather, I'll make sure it's on the mark. But there was a problem when I put the harmonic balancer back on because I had to fix a oil leak on the front seal and it was this, when I was using my install tool and the balancer was going on pretty easy, it seemed to bottom out yet I'm still an inch away from the top of the timing cover. I found that to be odd and put my leg into a couple of turns more but although it seemed like it was going on further, it really didn't move any more at all! After watching a video on that issue I noticed the guy using a large socket to make sure that the sprocket on the crank was on all of the way and I didn't do that, so many that is the reason. I did however check the fuel pump relay and it's making contact sound when I turn on the key. But there is no way to hear if the fuel pump is making a turn on sound. With my hearing being as bad as it is and the fact that I'm by my self, it makes it hard. Thanks.