problems after head swap

[christafurjames]

I have a 2015 Ram 1500 5.7l V8 I had to replace a head on. I got everything put back together and had three codes come up. On was my electronic throttle sensor, one was my temperature sensor and the other was my 4WD was temporarily unavailable. I had a dead battery which took care of two of those sensors, but I had to replace the temp sensor because it would not clear. Once I got these three codes to clear, I had a P2311 code pop up, I noticed that I had a bad coil pack on cylinder 4. I replaced the coil pack and the code cleared. Now my truck runs as if it has a misfire but no codes are coming up. When driving, If i ease on the throttle it runs ok but you can still feel the engine missing as if it has a misfire. If you give it a decent amount of throttle, it is very sluggish and seems to loose a lot of power. anyone know what could be causing this issue?

 

[chopperman1]

I would start with unplugging the coil packs one by one. When you find the one that doesn't change anything, you've identified the cylinder causing the miss. Pull the coil pack and inspect, maybe you lost a spring or such.

 

[04fxdwgi]

I would also check the injector connections, while your at it.