I never owned a limited so not 100% sure but from all i have read Yes the RCN is the blood or the crossfire
I have two spares with me at all times,, a few years back i was at the track ,,big race and my car died 1/2 way down the track
costed to end of track, replaced my rcm, ran the guy again and won. I have two friends and both as myself, we have a
RCM and both cam and crank sensors spares in the trunk. so yes get a spare RCM try it in the car if it does not fix it at least you now will have a spare jim