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Misfire on cylinder 7 looks worse than i thought. Swapped plugs, wires, coil harness,coil. No change. All the parts i moved to cylinder 1 work fine. Did a resistance and capacitance check from pin 53 of c2 on the ecm to the coil plug and it passed both. ECM has a driver issue on cylinder 7. Going to get psi to replace the ecm under warranty. Only other thing i could do is check the hertz coming from pin 53 to the coil plug connector c. Cant finish tuning until i get this fixed. When driving, i can feel a roughness right by my right foot from the engine from cylinder 7 attempting to fire. Yesterday it fired as i was driving and spun tires when unexpected then stopped firing again.
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