Crankshaft position sensor replacement? Old sensor snapped.

Hi,

You could have a bad sensor however, if you have not learned the CKP sensor then that will cause the type of issues you are getting. When replacing the sensor the PCM needs to learn the new sensor so it can locate the windows of the tone wheel.

You need a scan tool to do this but before we do that try to do what is called a TLC relearn. That means go to a safe location and accelerate up to 65 MPH and then decelerate down to under 40 MPH with no brake or accelerator input. Do this 4 times in a row and it will force a relearn procedure. This may cause the PCM to relearn the crank as well. If this doesn't work then we will need to have a scan tool and perform a crank relearn procedure. That should correct the concern. Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Thanks

I'd ignore it and pop in a new sensor. That piece is going to land in the lower part of the pan where the oil pump pickup tube sits, and that has a screen on it to prevent those parts from being sucked up. The screen sits too close to the bottom of the pan for that sensor to become lodged under it and block oil flow. You can pick the piece out some day when you have to remove the pan to replace it or to reseal it.

It is on the right rear of the block, behind the starter.

What is behind it is the crankshaft. You have the right idea with drilling the old one but if that does not work. You do not have much choice but to drop the pan. Make sure you force some carburetor cleaner and then WD40 into there to loosen the varnish up.

To return that quickly, it is an electrical issue. Check all your wires for good connections.

Was this problem there with the old motor?

Roy

Re check all your connections and grounds.

Do you have a scan tool, not as code reader?

Roy

Pfrobably an issue with the wiring somewhere that was disturbed when the harness was moved around for the engine change, assuming you used the exact same replacement engine.

Check the image below

REMOVAL
The sensor is bolted to the top of the cylinder block near the rear of right cylinder head. The sensor is accessed by removing the right front fender liner.