Ok, so I posted some of this a few weeks ago. I changed the Crank Position Sensor because I was getting the 336 code. Put a new one in, and now I have a bad vibration at idle. I put another sensor in to rule out bad sensor, same thing.

If I rev the engine to 1500RPM, smooths out and vibration goes away.

Also, I do have a knock that increases with RPMs.

No loss in power, very strong running, but killer vibration.

Ideas?

 

I thought there was a procedure to make the ecm recognize the new sensor, but not sure 'bout that. Wish I knew more.