Eco Engine miss with no codes. All rpms

[csorensen4124]

Hello all. First time poster, typical lurker. In need of help as I am at a loss. My wife owns a 2015 Lonestar with lvl2 weight loss that has an issue I just can't figure out. Started about 2 months ago. She was leaving a stop light when it all of a sudden started missing and stalling. She was able to start it multiple times to get out of the intersection and call me. It keeps missing and sometimes it sounds terrible like a real lean knock. Truck starts every time no issue but I can't figure out what is going on. First, we changed filter. It was ballooned a bit but intact. Changed it. Dropped tank to get clean fuel in, clean out and replaced lift pump since I was there. Had 2 injectors ohm low. Replaced those. Replaced the remainder while there. Nothing in fuel quality solenoid. Using alphaobd, fuel pressure looks good. Put weight reduction back on, factory tune...still no codes and same issue. Am I missing something....I thought for sure I should have a code somewhere!?!?

 

[Boone]

try crankshaft positioning sensor

 

[csorensen4124]

try crankshaft positioning sensor

Wouldn't it throw a code and put me into limp mode? Additionally, isn't it typically hard if not impossible to start? I am having zero hard start issues. The truck actually runs perfect for about the first 3-5 seconds, then the missing starts.