2000 Dodge Dakota P1391 Error Code: After Transmission Replacement, Won't Idle Smoothly

Model: 2000 Dodge Dakota Fault Code: P1391 Posted: 2016-06-17 18:56

I recently replaced the transmission in my 2000 Dodge Dakota 3.9L. After the replacement, the vehicle turns over but won't start. I tested the crankshaft position sensor and found it faulty—replaced it, and the engine now starts but runs unevenly at idle. Now I'm seeing a P1391 diagnostic error code. What does this mean? How can I fix it without damaging the vehicle further? I'm considering driving or pushing this vehicle over a cliff—I need help before things get worse!