where is the crank shaft sencer lokaed on 2000 Dodge Ram 2500

i have a code p1391

Asked by for the 2000 Dodge Ram 2500
2 answers
front of the engine near the harmonic balancer. be carefull there is usualy very little room to get your hands in please remove the key from the ignition and disconnect the battery to avoid accidental starting while your hand is in there.
behind the starter