How to Reset Crankshaft Position Sensor No Start Problem

How to Reset Crankshaft Position Sensor No Start

Did you get into your car today, turn the key of your vehicle to ignite it and it started? Then you must give thanks to the crankshaft position sensor.

It is the crankshaft position sensor that enables the ignition of a vehicle to function, and if it goes out of place, your car won’t start until you reset it, and even if it does, it won’t operate at an optimum capacity.

When you notice something wrong with your vehicle, such as having starting problems, or can’t accelerate properly, or its gas milage has reduced, then it indicates that your crankshaft position sensor needs resetting.

Now here’s the big question; can you reset the crankshaft position sensor of your vehicle? If yes, how?

Can You Reset a Crankshaft Position Sensor?

Yes, it is very possible to reset a crankshaft position sensor. You only have to make sure that as you reset, reconnect, or reinstall, the crankshaft must be in synchrony with your vehicle.

When you reset the crankshaft position sensor, you fix the issues that might have stemmed from the crankshaft being wrong. It is the most effective way of fixing crankshaft position sensor issues.

Resetting a crankshaft position sensor simply means entirely replacing the crankshaft sensor with a functioning one, and then reinstalling it to ensure that the crankshaft is synchronized with your vehicle.

By relearning your crankshaft position sensor, all the previous data, or bugs that must have caused the issues to your vehicle’ are eliminated, to give you a trouble-free driving experience.

How to Reset Crankshaft Position Sensor No Start Problem

The crankshaft position sensor is responsible for converting linear energy into rotational energy, and this rotational energy is what allows the engine to move. It powers the ignition and also gives efficiency to important parts of a vehicle.

When the crankshaft position sensor isn’t functioning as it should. Then you know it is time to reset or reinstall it. There are several steps to take when you want to reset the crankshaft position sensor when it has a No Start problem.

Resetting the crankshaft position sensor is also called a process of relearning, as you have to re-sync the newly installed crankshaft, to help your vehicle understand the position of the new crankshaft.

To reset the crankshaft position sensor, there are two known ways for this process. There is resetting with a scanner, and resetting without a scanner.

Resetting With a Scanner

  • Step One: To reset with a scanner, the first thing you should do is connect a system scanner to the computer of your car to ensure that the trouble codes hidden within the system that destroyed the previous crankshaft will be gotten rid of.
  • It is important to note that if the code on the system scanner connected to your computer is not the right code for the resetting/relearning process, the process will be disabled and you would have failed to reset your crankshaft position sensor.
  • Step Two: Once you have connected your system scanner to your car computer, the next thing you need to do is to set or install the brake, cover the hood, and then finally hinder or block the steering wheel.
  • Step Three: After setting your brake, covering the hood, and then blocking the steering wheel, check your engine oil and coolant levels to make sure they are at required or optimum levels, preferably at level 158F, then turn on your engine and let it run. After about fifteen seconds, turn off the engine once again.
  • Step Four: Click on CASE Learn on the scanner to get the crankshaft position sensor ready for positioning, relearning, and resetting.
  • Step Five: Restart your engine, but this time, ensure you hold your brakes tightly and don’t let go.
  • Step Six: You will notice instructions popping up on your scanner, you should follow the instructions with adequate diligence.

At the end of step six, your crankshaft position sensor should now have been reset.

Resetting Without a Scanner

If you are not using a scanner to reset your crankshaft position sensor, you should take extra care and caution.

  • Step One: Turn off every accessory in your car while still keeping the air sensor and coolant levels at 5C apart before starting is wrong.
  • Step Two: Let the engine remain in “Park” mode or “Neutral” mode, but let it run for a minimum of two minutes.
  • Step Three: Put your legs on the throttle and accelerate your vehicle to the tune of 55 mph, and let it remain like this for a minimum of 10 minutes as well to get the vehicle in a normal operating capacity and temperature. You need this for the steps ahead.
  • Step Four: After accelerating at 55 mph for 10 minutes, maintain the same speed for another five minutes, and continue to let the engine run.
  • Step Five: After one minute, reduce your speed from 55 mph to 45 mph without stopping or stepping on your brakes.
  • Step Six: Accelerate once again to 55 mph for two more minutes

Finally, let the car be idle for about another two minutes. If you complete this process, you have reset your crankshaft position sensor.

Benefits of Reseting Crankshaft Position Sensor

No more “No Start” Problems

Once you reset and relearn your crankshaft position sensor, you won’t get any more ignition problems.

Check Engine Light Gets Fixed

If the Check Engine Light was on all the while, telling you to check the engine as a result of the bad crankshaft, this gets fixed, and the Check Engine light goes off.

Improved Gas Mileage

Since the failing crankshaft position sensor reduces the efficiency of gas consumption, resetting your crankshaft will help improve your gas mileage.

Curbs Acceleration Problems

Problems relating to acceleration, such as uneven acceleration while driving will also cease.


You can reset your crankshaft position sensor using two methods, with the scanner, and without a scanner. Whichever method you choose to use at the end, ensure that you follow through the steps properly, making sure that there are no trouble codes that can affect the relearning process of the crankshaft.