Engine losing power

Welcome to 2CarPros.

First, if the check engine light stays on when the engine is running, you need to scan the computer for diagnostic trouble codes. If it is on, there will be helpful information to diagnose the issue.

Here is a quick video that shows how it is done:

https://youtu.be/YV3TRZwer8k

I realize most people don't own a scanner, but often times a parts store will do it for you. Also, they even may lend or rent one.

Now, based on your description, my first suspect is the crankshaft position sensor (not the camshaft sensor). When they start going bad, they can fail like this. Take a look through these links. The first explains the crankshaft sensor's function. The second explains symptoms. The third explains in general how one is replaced.

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

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

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Now, if the check engine light never stayed on, it could still be this sensor. How I determine if it is bad is by using a live data scanner to see if the RPM signal stops when the engine stalls. If it does, this is my first suspect.

If you look at picture 1, it shows the location of the sensor. I circled it for you. If you determine this is the problem, here are the directions for replacement. The remaining pictures correlate with the directions.

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Crankshaft Position Sensor Location
pic 2

The crankshaft position sensor is located on the right- lower side of the cylinder block, forward of the right engine mount, just above the oil pan rail.

REMOVAL
1. Raise and support vehicle.
2. Disconnect sensor pigtail harness from main engine wiring harness.

Sensor Removal/Installation
pic 3

3. Remove sensor mounting bolt.
4. Cut plastic tie strap securing sensor pigtail harness to side of engine block.
5. Carefully pry sensor from cylinder block in a rocking action with two small screwdrivers.
6. Remove sensor from vehicle.

Sensor O-ring
pic 4

7. Check condition of sensor O-ring.

INSTALLATION
1. Apply a small amount of engine Oil to sensor O-ring.
2. Install sensor into cylinder block with a slight rocking action. Do not twist sensor into position as damage to O-ring may result.

CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to cylinder block . If sensor is not flush, damage to sensor mounting tang may result.

3. Install mounting bolt and tighten to 8 Nm (70 in. lbs.) torque.
4. Connect sensor pigtail harness to main engine wiring harness
5. Install new plastic tie strap to secure sensor pigtail harness to side of engine block. Thread tie strap through casting hole on cylinder block.

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Let me know if this helps or if you have other questions.

Take care,

Joe

Has the check engine light come on? Have you checked fuel pump pressure?

Here is a how to for checing fuel pump pressure/

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Let me know what you find.

Joe

I would have the fuel pressure checked. You can rent a tester at a parts store. It may be taking too much time to build up fuel pressure

Roy

Sorry to hear that. It sounds like it has nothing to do with the motor exchange but let them check it and keep me updated.

Roy

Thanks, same to you and yours

Without an engine code, it does become a guessing game. Based on the fact that you smell fuel when it happens makes me think it is fuel related. Have you checked the fuel pump pressure and more importantly, the fuel pressure regulator?

Let me know if you need directions or if you have already done it.

Joe

Here is a how to for checking both. Let me know what you find. You will need a gauge, but most parts stores will lend or rent them to you.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Joe

It should follow the flow recommended. Disconnect it and see if it changes the power. It will be loud, but won't hurt anything. Remember, if the manufacturer took the time to have their castings have arrows showing what direction the air should flow, they did it for a reason.

Let me know what you find.

Joe

I would start with checking for vacuum leaks. After that, check fuel pump pressure. Here is a how to:

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Let me know what you find.

Joe