Help!! MISFIRES on turbo hemi.

[ryan1817]

I have a 2016 turbo ram 1500 with the 5.7. I've had it in multiple shops trying to get it all lined out but it's always something. It drives pretty great just puttin around but anytime it hits boost I get misfires mostly on cylinder 8. A few here and there on the other cylinders. It's a on3 performance kit. With 7875 t4 turbo 5lb spring and manual boost controller. I have ngk lrfaix-11 spark plugs gapped to .025, hellcat injectors, walbro 450 fuel pump in stock basket, 3 bar map, and have swapped coils injectors and plugs to see if the problem follows. Always stays mainly on 8. That cylinder also has around 175 psi compression. Does anyone have any ideas what is going on? I can unplug the charge pipe and have 0 misfires on all cylinders even under WOT. Ill post my tune and datalog with and without the turbo if anyone can help I will pay. Ignore the first part of the non turbo datalog my gas pedal got stuck under the floor Mat lol

[fumanchu182]

The 58 tooth reluctor wheel is spinning too fast so the pcm pics it up as a misfire. I disable them in the tune. Im running 26psi on my supercharger.

[fumanchu182]

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Just so you don't think I'm blowing smoke up your ass on this either... When we put the new racing long block in the car and started to go north of 22psi that's when this was happening.

[ryan1817]

Man if it works you are a true lifesaver. Where in the vcm editor do you disable it ?