Temporary Fix For Crankshaft Position Sensor: 9 Facts

The Crankshaft Position Sensor is a must-have for your engine management system! 

It tells you the crankshaft’s exact spot and helps to work out ignition timing, fuel injection timing, and rotational speed. If it’s broken, watch out; it can cause misfires, stalling, engine mismanagement, poor fuel economy, and even engine overheating or failure.

Spot any warning signs?
Like a check engine light or bad engine performance? It could be a dodgy Crankshaft Position Sensor

temporary fix for crankshaft position sensor

To fix it, you can either replace the faulty sensor or try a temporary fix. Check the wiring harness for damaged or water-damaged circuitry, or test the voltage at the sensor terminals with a multimeter.

If you do decide to replace it, make sure you get a top-notch product from a reliable source. You may need to remove parts like the crankshaft pulley or timing belt cover to get to the sensor in the engine block. Don’t forget the electrical connector to the ECU (Engine Control Unit)!

Pro Tip: To avoid future breakdowns because of extreme temperatures, keep your vehicle’s tank full; running empty can put a strain on internal components like the Crankshaft Position Sensor

Time to get revved up on the critical Crankshaft Position Sensor!

What is a Crankshaft Position Sensor?

temporary fix for crankshaft position sensor

The crankshaft position sensor is essential for an engine’s functioning

It measures the crankshaft’s position and speed and sends this info to the engine control module (ECM). This ensures that all cylinders fire accurately, and monitors engine RPM. Keeping this part clean and replacing it regularly is key. 

Otherwise, incorrect readings can lead to bad performance, more emissions, and even damage to the engine.

Before replacing the crankshaft position sensor, make sure your vehicle needs it. Its symptoms are similar to other issues. Never change the car’s wiring or electrical systems without proper instructions.

Without the crankshaft position sensor, your car won’t know where it’s going; just like a GPS without satellites.

What does the Crankshaft Position Sensor do?

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  • The Crankshaft Position Sensor (CPS) regulates engine performance and diagnoses problems. It measures the crankshaft’s rotation speed and sends info to the ECU for fuel injection timing and spark plug firing order. The CPS also recognizes misfires and monitors mechanical functions.
  • It’s connected to a triggering wheel on the crankshaft or flywheel. This detects rotational speed and position changes of the crankshaft. It gathers precise cylinder positions and keeps the ignition system in sync.
  • However, customizations vary depending on the engine type. Some vehicles have two sensors for accuracy.
  •  Shielded wiring systems protect against interference with signal transmission.

Pro tip: Monitor wear on bearings, since faulty rotating shaft bearings produce abnormal readings from a CPS. Without it, your car’s engine is useless.

The Importance Of The Crankshaft Position Sensor.

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  • The Crankshaft Position Sensor is essential for an engine to run efficiently.
  •  Without it, misalignments could cause major breakdowns and accidents. This sensor tracks the speed and position of the crankshaft and controls the fuel injection, ignition, and other parts of the car.
  • It also protects against reverse rotation, which can cause severe damage.
  •  It monitors the signals from multiple other sensors to detect any sign of backward rotation.
  • So, don’t ignore inconsistent readings from this sensor. Get it checked regularly for proper functioning.

 If your car’s acting oddly, the cranky sensor may be to blame.

Signs Of A Faulty Crankshaft Position Sensor.

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To identify a faulty crankshaft position sensor, you need to watch for a few signs.

 This section explores the symptoms, warning signs, and trouble codes that can indicate a problem with your crankshaft position sensor. 

Knowing these sub-sections of information is essential to diagnose the issue and plan for a temporary or permanent fix, depending on the severity of the fault.

Common Symptoms of a Faulty Crankshaft Position Sensor.

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If the crankshaft position sensor is faulty, there are several signs to watch out for. These will help you to detect the problem and take action. 

Here are some of the key signals:

  • Difficulty starting.
    The engine may not start, or hesitate to start, making it hard to use the vehicle.
  • Engine stalls.
    If the engine stalls while you’re driving, it might be a faulty sensor. This can be risky on high-speed roads.
  • Loud noises.
    The engine may make loud, unusual sounds, especially when accelerating, with a damaged sensor.
  • Poor performance.
    Malfunctioning sensors can lead to slow or poor engine performance.

Also, other things can contribute to these symptoms. So, it’s best to get expert advice. A tiny issue like this can cause big damage if left untouched.

Pro Tip: Check-ups regularly can help prevent issues with the crankshaft sensor and keep your car running smoothly. If your car is showing signs, it’s got crankshaft position sensor issues.

Warning Signs.


The Crankshaft Position Sensor is a must-have for your vehicle’s engine management system. Let’s look at the ‘Warning Signs’ that may suggest a defective crankshaft position sensor.


Signs of a faulty crankshaft position sensor could be,

  • Ignition system failure.
  • Erratic idling or acceleration.
  • Engine misfires or stalling.

Warning Lights:

  •  The dashboard’s warning lights will turn on if there’s an issue with the components.
  •  If the check engine light is on, the crankshaft position sensor could be to blame.

Error Codes: Professional mechanics can use fault scanners to look for error codes. If the crankshaft position sensor is not working, codes P0335 or P0336 are likely.

Note: These signs don’t always mean an issue with the crankshaft position sensor. Wires and cables could be malfunctioning too. So, it’s best to take your car to an expert for diagnosis.

If you suspect an issue with your Crankshaft Position Sensor, follow these steps:

  1. Take your car to a professional mechanic for an accurate diagnosis.
  2. Provide detailed information on the symptoms observed.
  3. Replace or repair any damaged parts like sensors or wires.

This will help keep your vehicle reliable and efficient.

Warning: Don’t try to diagnose your car yourself, it could cause more trouble than it’s worth!

Trouble Codes.

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  1. The ‘malfunction indicator lamp’ (MIL) in automotive engineering can signal a range of issues in vehicles. This lamp is connected to a computer chip that deciphers trouble codes. The codes tell us which problem the car has. One such code is related to crankshaft position sensors.
  2. These sensors determine the crankshaft’s position and send it to the engine control module (ECM). The ECM processes the data and makes adjustments. Faulty crankshaft position sensors can cause poor acceleration, stalling, or even prevent the car from starting.
  3. To detect issues, use a diagnostic scanner that connects to the vehicle’s OBD-II port. It will show trouble codes, which give insight into major component or system issues. 
  4. For instance, P0335 and P0336 suggest ‘crankshaft position sensor circuit malfunction’.

If you experience symptoms or get trouble codes, check your car’s sensors for wear and tear. Fix any issue quickly. Neglecting it can cause irreversible damage and increase repair costs.

We recommend visiting an experienced mechanic or taking your car to an authorized dealer if you suspect a sensor issue.

 Replacing sensors may be complex, but it can be done with DIY methods after learning relevant knowledge and certifications.

Regular maintenance and inspections are essential. Checking sensors helps improve fuel economy, prolongs vehicle lifespan, and ensures safety; giving peace of mind to drivers and passengers.

Causes Of Crankshaft Position Sensor Problems.

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To understand the causes of crankshaft position sensor problems and find a solution, dive into the Common Causes, Broken Crankshaft Position Sensors, and Faulty Wiring or Wiring Harnesses. 

This will help you identify the vital component’s signs and symptoms and why they stop working. 

You will also learn what causes poor fuel economy, engine misfires, and stalling and how to avoid or manage these issues.

Common Causes.

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Crankshaft Position Sensor Problems – Root Causes!

Is the crankshaft position sensor causing engine issues? It’s not a good look. Here’s why:

  • Wiring Issues: Wiring damage or breakage could mean signal transmission stops between the sensor and ECU.
  • Contamination: Dust and debris on the sensor or in its plug can block the signal.
  • Sensor Malfunction: Sensors lose accuracy over time, creating problems with engine speed and performance.

Remember, these causes sometimes overlap with other engine issues. So, mechanics must check all components before replacing X Sensor.

Broken Crankshaft Position Sensor.

The sensor that detects crankshaft position is a common vehicle problem. 

  • It can cause issues with fuel efficiency, emissions, and performance
  • This happens when the wires connected to angular position sensing are broken or damaged. It leads to problems calculating acceleration/deceleration.
  • This issue will lead to fluctuations in ignition timing vs. other sensors. Technicians use codes to detect it before it causes major engine damage. 
  • High vibration can weaken connections or malfunction the component. Misdiagnosis has caused expensive/unnecessary repairs in the past. 

So, owners must have their vehicles checked regularly to keep components functional.

Faulty Wiring or Wiring Harness.


Inadequate cabling or wiring systems for vehicles can be a major source of trouble with crankshaft position sensors. 

  • The wiring harness helps electric signals flow, which is necessary for the sensor to work. So, if the wiring is off, the sensor will not function properly.
  • Studies have shown that many drivers of certain car models were having trouble with their crankshaft sensors. This issue was traced back to bad wiring and cabling. 
  • As a result, car makers have improved their electrical designs, since they recognize how important good wiring is.

This table shows what could happen with a wiring system failure or improper installation.

Problem Cause
Rough idling Short circuits between wires.
Intermittent start-up Loose connections or incorrect installation of connectors.
Misfire Disconnection in wire providing current.

These types of problems are usually caused by production errors or general wear over time.

If you experience any issues, it’s best to get a professional mechanic’s advice first.

 Don’t try to fix it yourself, as you might make it worse!

 Here are some temporary fixes to keep your crankshaft sensor from misbehaving:

  • Check the wiring and connectors to make sure everything is connected properly.
  • Clean the sensor to remove any dirt or debris that may be interfering with its operation.
  • Replace the sensor if it is damaged or not functioning properly.

Temporary Fixes For A Bad Crankshaft Position Sensor.

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To troubleshoot a bad crankshaft position sensor, you might need a temporary fix. This can be achieved by checking the CPS sensor with a multimeter or the CPS wiring with a test light. 

Another solution is resetting the error codes or taping the CPS connector. 

These four subsections will provide you with important information on how each solution can make your car run until you can get a permanent fix.

Checking the CPS Sensor with a Multimeter.

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Using a multimeter to inspect the crankshaft position sensor can be an efficient way of identifying issues and fixing them. 

Here’s how:

  1. Turn off the ignition. Disconnect the battery.
  2. Find the CPS sensor connector. Remove it from the sensor body.
  3. Set up the multimeter. Select DC Voltage, 20 V range. Connect to the wires.
  4. Ask an assistant or another mechanic to crank the engine. Check for voltage output from each wire.
  5. Change the setting to “Ohms“. Test each wire for resistance levels.
  6. Compare readings with manufacturer specifications.

Be careful. Repeat tests multiple times to confirm accuracy. Remember certain brands have different ranges for multimeter testing. 

Checking with an oscilloscope may give better results. For complex problems like broken components or wiring issues, a professional mechanic is recommended.

Diagnosing these issues correctly will prevent further complications, reduce expenses, keep safety standards, maintain implementation systems, prevent interruption of production time, enhance reliability, and extend performance life.

 Test the wiring with a test light for a functioning engine.

Checking CPS Wiring with a Test Light.

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For diagnosing car issues, it’s essential to check the wiring of the Crankshaft Position Sensor (CPS). Utilize a test light to accomplish this task!

  1. Take out the keys, and disconnect the wires from the CPS connector. Then attach them to the test light.
  2. Turn on the engine, but don’t start it. If the test light glows, there is a problem.
  3. Investigate if the cables are broken, or there are bad connections.

Corrosion around wiring can cause system problems. Ignoring this can result in guesswork when trying to diagnose engine performance issues.

To avoid this, regularly inspect the vehicle’s sensors. This will help detect small issues before they become huge problems

Resetting the error codes is like restarting life; except for relationship issues!

Resetting the Error Codes.

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If you want to get rid of the existing error codes, use a Semantic NLP variation of “Resetting the Error Codes.” 

Here’s a 5-Step Guide to resetting your vehicle’s error codes:

  1. Take an OBD scanner and read the current error codes.
  2. Write down the error codes for future reference.
  3. Disconnect the car battery and wait for 30 seconds.
  4. Reconnect the battery and start your vehicle’s engine for testing.
  5. If successful, the check engine light should not blink. Then, use the OBD scanner again to make sure there are no fault codes present.

It’s important to remember that this resetting won’t solve the underlying issue. It may only work temporarily.

To fix the problem, you need to use specialized diagnostic equipment and do more in-depth troubleshooting.

 Cartrover reports that crankshaft position sensors fail more at higher mileage.

 If duct tape can’t fix it, you’re not using enough; especially when it comes to taping the CPS connector.

Taping the CPS Connector.

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Taping the CPS Connector can be a quick and practical solution to get the car going.

 Here’s how:

  1. Wipe the connector with a dry cloth to remove dirt, debris, or moisture.
  2. Wrap the connector with electrical tape twice or thrice.
  3. Push it into place and check if it’s fixed properly.

However, taping may only give temporary relief. The tape may loosen over time or in harsh weather conditions, meaning you’ll need to reapply it.

Car From Japan shares the fact that “Crankshaft Position Sensor failures are common in both diesel and gasoline engines.” 

So, it’s time to give the crankshaft sensor a permanent fix!

Permanent Fix For A Bad Crankshaft Position Sensor.

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To permanently fix a faulty crankshaft position sensor, you need to replace it with a new one. 

Installing the new sensor can be tricky, but it’s essential for proper ignition timing and improved performance

Testing the new sensor ensures it’s working correctly, and your car won’t stall or misfire again.

 In this section, we will explore the subsections of replacing the crankshaft position sensor, installation of the new sensor, and testing the new sensor to provide a comprehensive guide for a permanent fix.

Replacing the Crankshaft Position Sensor.

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The Crankshaft Position Sensor can cause big problems for a vehicle’s performance. Replacing it will take care of the problem.

 Here’s a 4-step guide:

  1. Look for error codes or ask a mechanic to find the faulty sensor.
  2. Disconnect the battery cable from the negative terminal and the wiring harness from the sensor.
  3. Unscrew old sensors with pliers or wrenches and install a new one.
  4. Connect the car battery and test to ensure the sensor is working correctly.

It’s best to use an OEM replacement part from a reliable manufacturer. Aftermarket options may not be sensitive enough, causing more issues.

Letting a faulty sensor stay can cause expensive engine damage. 

A sedan owner had this problem and their mechanic warned them. The owner replaced the Crankshaft Position Sensor straight away and their vehicle’s performance improved. 

Replacing the sensor; is like a heart transplant for your car!

Installation of the New Sensor.

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To fix vehicle starting issues, a new Crankshaft Position Sensor is a must! 

Here’s a 3-step guide:

  1. Locate the old sensor under the hood.
  2. Detach wiring connectors and screws.
  3. Clean the area, install the new one, attach wiring connections, and tighten with screws.

Remember to check that the sensor’s specs match your car’s make and model. Else, compatibility problems will arise.

Clean the area with an appropriate cleaner for guaranteed installation. After fitting everything, reset possible error codes on restarting your vehicle. 

We wish the new sensor passes the test so our engine doesn’t act cranky anymore!

Testing the New Sensor.

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To double-check the accuracy of the new crankshaft sensor, a test must be done. This will show if the sensor is working right and providing reliable engine data.

The table below lists the steps to test the new sensor.

Step Action
1. Connect an oscilloscope to the Crankshaft Position Sensor (CKP) signal wire.
2. Turn on the engine and watch the waveform pattern on the oscilloscope.
3. Compare it to a known-good CKP waveform pattern to check accuracy.
4. Confirm voltage changes between high and low values of one volt or more as RPMs are increased and decreased in increments of 500 RPMs up to 5000 RPMs.

If all these values match the known-good CKP pattern, the new sensor is working properly.

Not all car makers use oscilloscopes to test CKP sensors. So, check your manufacturer’s specification tool for the right test procedure.

Pro Tip: Always stick to manufacturer instructions when testing new sensors; this helps guarantee correct readings and prevents future engine performance problems.

Fixing your car’s crankshaft sensor might be a hassle. But it’s better than the cost of a tow truck.

Frequently Asked Questions.

Q1. What is a crankshaft position sensor and why is it important?

A: A crankshaft position sensor is a device that monitors the rotational speed and position of the engine’s crankshaft. The information collected by the sensor is crucial to the engine management system, as it helps determine ignition timing, fuel injection timing, and other important parameters. The crankshaft position sensor is vital to the proper functioning of the engine, and a faulty sensor can lead to several issues including stalling, misfiring, poor fuel economy, and even engine failure.

Q2. What are the signs of a bad crankshaft position sensor?

A: The most common symptoms of a faulty crankshaft position sensor include engine misfires, stalling, rough idling, poor acceleration, and check engine light illuminated. You may also notice a decrease in engine performance and fuel economy. If you experience any of these issues, it’s important to get your vehicle inspected by a mechanic to determine the cause.

Q3. Can a bad crankshaft position sensor cause damage to the engine?

A: While a bad crankshaft position sensor won’t typically cause direct damage to the engine, it can lead to several issues that can cause harm over time. For example, a faulty sensor can cause the engine to stall or misfire, which can lead to internal combustion issues that can eventually lead to engine failure. To avoid potential damage, it’s important to address any problems with your crankshaft position sensor as soon as possible.

Q4. Is there a temporary fix for a bad crankshaft position sensor?

A: There are a few temporary fixes that can help you get your car running until you’re able to properly repair or replace the faulty sensor. One solution is to disconnect the sensor, which will cause the engine control module to use default values for timing and fuel injection. Another option is to test the sensor with a multimeter and, if it’s found to be faulty, temporarily bypass it with a jumper wire. However, it’s important to note that these temporary fixes may not work in all cases, and could lead to further issues down the line.

Q5. How much does it cost to replace a faulty crankshaft position sensor?

A: The cost of replacing a faulty crankshaft position sensor can vary depending on the make and model of your vehicle, as well as the availability of the part. On average, you can expect to pay anywhere from $100 to $300 for a new sensor and installation, though the price could be higher if additional repairs or replacement parts are needed.

Q6. Can I install a new crankshaft position sensor myself, or should I take it to a mechanic?

A: Installing a new crankshaft position sensor can be a DIY project for those with some mechanical knowledge and experience. However, it’s important to note that the installation process can be quite involved, and may require removing other components like belts or wiring harnesses. If you’re not comfortable working on your car, or if you’re unsure of your ability to complete the job safely and accurately, it’s best to take your vehicle to a qualified mechanic.


The crankshaft position sensor is essential for a car’s engine. It checks the piston position and speed. A bad sensor can cause misfires, stalling, poor fuel economy, and engine failure. If you think the sensor is causing a problem, act quickly! It may not be practical or possible to replace it. But you can try a few temporary fixes. Check the wiring harness and connectors for faults or damage. Test the CKP device with a multimeter or scanner. Use a test light to test voltage levels. You can also replace the sensor with an old one or bypass it. Remember, these temporary fixes are only meant to keep your car going until you can get a new sensor. If you don’t fix the issue, it can damage other components too. So, don’t delay – seek expert help if needed.