Quote Originally Posted by shmiet View Post
So you're suggesting running both computers right?
Or do you mean use the original coolant temp and oil pressure sensors and repin them into the new pcm?
No get rid of the black box.Use the OBS oil and water senders ,they will connect to the 98 truck wires.The 411 PCM has no need for oil pressure input,before the engine goes in re-tap the passenger side head for the old water sender,the driver's side water sender is needed for the 411 PCM.