Hello, I changed to a 24x on my 2010 5.3 Engine. Before I started the swap I see a lot of posts about people putting it on backwards. I thought I had this all figured out by looking at pictures and even confirmed it was right by putting another engine at TDC and looking through the sensor opening and comparing what teeth are showing on both. (I THINK, THIS WAS OVER 9 MONTHS AGO). Finally got back in the garage to finish buttoning everything up and tried starting. It popped a couple times like it wanted to start and then it would kick back. I have done the A/C pin swap on the cam sensor and confirmed Power, Signal, and Ground are all on the right cam sensor pins. I was able to scan while cranking and I do get RPM, but only when the PCM adds timing for some reason. I logged "Crank Sensor Current Cyl" and the numbers are like 7,649 to 65,000?? So not sure what that even means. I though maybe it was a scaling issue.
So I took it another step and put it at TDC as best I could by looking through the spark plug hole and matching up the cam gear to where it just barely starts to cross the cam sensor. Checked what tooth the crank is showing in the sensor opening and its still very close to what it shows on another crank I have laying in the corner that would be 90* from the TDC dot on the crank. I know its not going to be completely accurate but I was more looking for to see if I had it on backwards because I know I had it lined up with the holes on the crank when I installed it. The only thing I can think of is that its upside down? Meaning its facing correctly just 180* out. But its hard to sell myself on that when I double and triple checked it. The only thing that has me concerned is that the picture I was checking the placement against was wrong because I didn't have the other crank or the engine I compared it to until after I already had it assembled?!
I just want to prove it is on wrong before I pull everything again.
Here is a screen shot of my scan while trying to start it. Please let me know if you see anything that tells you right away its on wrong.
Capture.PNG
Thank you in advance!