Will not start after replacing crankshaft position sensor

Hi and thanks for using 2CarPros.

The sensor itself may be bad, came loose, damage to wiring, or a multitude of other things.

Now, what I suggest is this. First, confirm the sensor connector is tight, has no corrosion, and no damage to the pins.

Here are directions for removal and replacement. Make sure you did what the directions indicate. The attached pictures correlate with these directions.

CRANKSHAFT POSITION (CKP) SENSOR REPLACEMENT

REMOVAL PROCEDURE

picture 1
1. Disconnect the crankshaft position (CKP) sensor electrical connector (3).
2. Remove the starter.

picture 2
3. Remove the CKP sensor bolt.
4. Remove the CKP sensor.

INSTALLATION PROCEDURE

picture 2 again
1. Lubricate the CKP sensor O-ring seal with clean engine oil.
2. Install the CKP sensor.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the CKP sensor bolt.

Tighten the sensor bolt to 10 N.m (89 lb in).

picture 3
4. Install the starter.
5. Connect the CKP sensor electrical connector (3).

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If everything looks good, you need to check for an RPM signal or crankshaft position sensor signal. You will need a live data scanner to do that. See if the parts store will lend or rent one to you.

If you find there is no crank signal, I would replace the sensor which may have failed. If there is a signal, see if the engine starts for a couple seconds with starting fluid. If it does, then it is related to fuel.

Here are links that show how to check for spark to the plugs (can do this in place of scanning for a signal) and a link that shows how to check fuel pressure. If you find there is spark to the plugs, then the sensor is working.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Here are the manufacturer's specs for fuel pump pressure:

Fuel Pressure (Key ON, Engine OFF) .................... 345-414 kPa (50-60 psi)

Do this and let me know what you find or if you have other questions.

Take care,
Joe

Since the issue changed after replacing the sensor, that sounds like where the problem is. Have you checked the connector? Has anything come loose?

Take a look at the attached pic. Check the fuse I circled as well as check for ground for the coils.

Let me know what you find.

Joe