Faulty Crankshaft Position Sensor? - How to Test and fix!

Tim’s back and he’s tackling a common car issue that can leave you scratching your head - Bad Crankshaft Position Sensor Symptoms, and he’ll show you how to test the faulty crankshaft position sensor and fix this problem like a pro!
In this video, we'll dive into the nitty-gritty of crankshaft position sensors and their crucial role in your car's engine. We'll walk you through the tell-tale signs of a faulty sensor, how to spot these symptoms and take action before they escalate into bigger problems.
We'll also guide you step-by-step on how to test it with tools that you likely already have in your garage. Plus, we'll share expert tips and tricks to make the testing process a breeze, even for beginners.
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0:00 - Episode insight
0:26 - Bad Crankshaft positions sensor symptoms
1:20 - What does a crankshaft position sensor do?
2:02 - How to test a crankshaft position sensor with an oscilloscope
2:50 - How to test a crankshaft position sensor
4:02 - P0335 Crankshaft position sensor a circuit
4:38 - Test crankshaft position sensor wiring
5:24 - P0337 diagnosis
6:38 - P0338 cause and repair
7:29 - Diagnose cause of wiring loom fault
7:52 - Repair faulty ECU causing P0335

[@Ecutestinglimited]

🤔❓Think your ECU is faulty? We can fix it ➡🌐link.ecutesting.com/crankcontact

[@doomraider2782]

thank you automotive jonny sins, this is exactly what i needed

[@Jeremiah.1]

This is one excellent video very informative and a professional well explained

[@NT-eh6om]

What a well made video. Thank you for allt he hard work.

[@jameskthomson3939]

Could you do a similar video for a 2 wire sensor please? This is a great video but all of the vehicles I've worked on are 2 wire. I'm having issues currently with a 2008 5.4 3v F150. I love how you get right to the point and make things easy to understand. Thank you.

[@jaehunlee9732]

All easy to understand

[@ginolandro4582]

Keep up the good work 👍🏻

[@thestoryteller526]

Man thakx for this quality videos❤

[@thestoryteller526]

Bro can you help me on a car am working on

[@Bdennis18]

here's one for you, using a three wire on the crank. I'm getting a crank but no start with intermittent spark - side note while testing for spark I don't receive any cylinder misfires. but I'm also not getting any codes related to crank or cam. but I do get the barometric pressure one for having it disconnected while trying to start to make it easier.

[@Soufian_SG]

Thank you from Algerian 🇩🇿

[@samedbensaad4391]

You deserve every single sub you got, ❤❤

[@brahimmeguireche8906]

Thank you bro

[@Delta3111]

Good video

[@imeshsandaruwan9637]

Thanks a lot ❤

[@carcrazy4323]

Nice explain....from india❤

[@mosb5697]

Thanks for this video. Moreover, I am working on a 2009 toyota corolla, I have 12volts on the ground wire of the crankshaft sensor, but am not getting any volts on the hot wire,I checked the continuity of the hot wire from the pcm to the terminal and resistance is ok but still won't get any voltage on the hot wire,I am confused now , any advice to what to do next?? Thanks

[@stancreezzy5500]

Nakukubali sana brother ❤❤❤

[@JozefMatufka-fj6bb]

Cesky

[@AliAlhassan-lr2my]

Hello am from Ghana i like your video 👍👍

[@frederickcorriea3824]

Question do you have any video on 06 Honda Odyssey crankshaft sensior? and wiring ? thank you

[@kungfu9409]

Legend 🙌

[@hisunbeam]

Great informative video Ihave the p0335 code on my vauxhall vivaro no start should i have 2.34 v voltage on both connections on my crank sensor wiring

[@Ecutestinglimited]

Hi. Although this video is for a 3 wire sensor, you can follow a similar method of testing to diagnose the fault. Were the 2.34v readings taken from the sensor connector (with the sensor unplugged) with the ignition on? Start here and then follow the video to conduct the same tests at the ECU connector and so on.

[@DavidGutierrez-zi4dy]

great!

[@robertsmith2956]

one suggestion. for wire faults use a 250mA or 500 mA test light at least. A wire with one strand will still show continuity, but won't allow current to pass through it. A dim glow will expose this.

[@conmanumber1]

On Nissan Navara D40 St-X Diesel. Can sensor give problems without fault codes?..

[@kingsleyChiemerie-ws8lm]

How can start knowing how to use my digoning machine

[@mosb5697]

Hi, i am working on 2009 hyundai santa Fe. i have no spark and no fuel. But the problem is that i dont have any code on the car. The car would crank, i test the fuel pump, and it's good. I replaced the crankshaft position sensor as well as the pcm. But the car still doesn't have a spark.. what shld i do next??

[@hrhpaul]

Slightly different code.. P0322 followed by 04087 VW Transporter 2.0 TDi, what are your views/opinions.. It's also intermittent.

[@frontlinemedia4270]

What about testing 2 wire crank sensors?

[@randomsucks2444]

Can you suggest what to use when setting it on fire?

[@HSKFabrications]

Gasoline

[@antonioavellina9363]

Can a P0016 be caused by a bad crankshaft position sensor?

[@Ecutestinglimited]

Hi. A P0016 can be caused by either a faulty cam or crank sensor, or a mechanical fault on the vehicle. We would recommend completing all the wiring checks in this video as well as our video on the cam sensor: kzbin.info/www/bejne/fIW8YmR_mrx1qc0 in order to determine if the fault could lie in the circuit.

[@davebrown4699]

Is testing at the CMP sensor the same as the ckp? If so I'm getting no voltage at the sensor wire with the it disconnected.

[@Ecutestinglimited]

Hi. Yes, testing at the camshaft position sensor is largely the same as the crankshaft. We have done a video specifically on the cam sensor here: kzbin.info/www/bejne/fIW8YmR_mrx1qc0 But if you aren't getting any voltage at the sensor connector with the ignition on and sensor unplugged, it is likely the wiring or ECU is faulty. You will need to back probe the wires at the ECU connector as we show in this video at 4:47. Hope this helps

[@davebrown4699]

@@Ecutestinglimited I have 12.4 volts at the ecm sensor wire brn/wht so it's got to be a break in the wire, so I ordered a short/open tester to find it. Thanks,

[@Ecutestinglimited]

Hi@@davebrown4699 No problem, good job on the diagnosis! We hope finding the damaged wire isn't too hard 🙏

[@sidnarciso4872]

Can the ecu cause no signal from crank sensor? Ive replaced 3 times. I also have no can signal at ecu

[@Ecutestinglimited]

Hi. Yes a bad ECU can result in no signal from the crank sensor. If you have completed all the checks in this video to rule out the wiring loom and sensor, then it is worth testing the ECU to make sure it has a good power and grounds, which you can do by following the steps in our video here: kzbin.info/www/bejne/j2TEoHdrd7Krh9ksi=veJToJJYZVkvXI2I If you aren't getting any CAN communication it could also be worth testing the CAN Bus circuit. If you rule these out then you can determine your ECU is causing the issue. If this is the case then please contact our technical support team via email on [e-mail] with the part number of your unit and any relevant diagnostic information, and they will advise you of any testing and re-build service we can provide. Thanks.

[@A1topmechanic]

Why not explaining a 2 wires sensor?

[@otiswise]

Is it normal for the signal wire to be 12v? I am reading some cars are 5v and some are 12v depending on the car etc?

[@Ecutestinglimited]

Hi. While it's more common for crankshaft position sensors to use a 5V signal, some can be 12V. Inductive type sensors are more likely to have a 12V signal, especially in older vehicles or if the sensor is a 2-wire design (compared to the 3-wire design more typical for 5V sensors). We would always recommend consulting your specific vehicle's technical documentation to confirm.

[@user-ti1xh5vs6s]

i Have a Honda accord 2005 Hybrid with code P0335 i change the crankshaft sensor but still have the code , check Volt on the blue cable and is 3.7V intead of 5V , what should a check next?

[@Ecutestinglimited]

Hi. Do you know if your blue cable is the power supply to the sensor or the signal wire? And did you conduct this test with the ignition on or with the engine running?

[@user-ti1xh5vs6s]

Signal with the ignition on . The sensor is 5 pint or wire. Thanks for the reply. 😄

[@Ecutestinglimited]

If you have 3.7v on the signal terminal with the sensor disconnect and ignition on, then we would recommend completing the same test at the ECU connector by back probing the signal wire that goes to the crank sensor. If the voltage is 3.7v here, then the fault likely lies with your ECU, or both the wiring and ECU. Inspect the ECU connector for any damage, corrosion or poor terminal tension to see if the fault is being caused by a bad connection. If that checks out ok, then follow the steps in the video from 5:27 onwards (but on the signal wire instead of the 5v wire as shown in the video) to determine if the fault lies in both the wiring and ECU or just ECU. Hope this helps!

[@aymenmohamed1134]

👍👍

[@ioanfejer3340]

Hi, What about P1335 on astra G? Thank's

[@Ecutestinglimited]

Hi. A P1335 on an Astra indicates a problem with the crankshaft position sensor, its wiring, or the ECU, so we would recommend completing the checks we have outlined in this video in order to identify and rectify the problem.

[@ioanfejer3340]

Thank's a lot for the information, really apreciated!

[@Kfred718]

How to get in contact with you I need a ecm rebuild

[@Ecutestinglimited]

Hi. You can call us on [phone] from (9:00-22:00 GMT+1) or email our technical support team at [e-mail]. Thanks.

[@edmundnimely9145]

Can dirt make the sensor to malfunction??

[@Fremen02]

What about P0339 ??

[@Ecutestinglimited]

Hi. The P0339 fault code indicates the ECU is detecting an intermittent or erratic signal from the crankshaft sensor. This can be due to a faulty sensor, ECU or wiring from the sensor to the ECU. We would recommend completing all the checks outlined in this video to determine where the fault lies. As the P0339 code is intermittent, we would recommend completing all these checks whilst wiggling the wiring loom and connectors from the ECU to the sensor to see if the voltage readings change at all. Hope this helps!

[@muhammadrashidjaved301]

Hi i have got vw golf 1.2 tsi ,its keep giving code p0322 engine no speed,checked the wiring its showing 5v,signal wiring 5v,have changed 2 sensors still showing same problem.can u help plz

[@Ecutestinglimited]

Hi. The P0322 code could also be caused by a fault with the Camshaft position sensor, have you completed the same tests at both the crank and cam sensor connectors? Also, have you tested the ground connection to the sensors as well? If you have done these, then also inspect the sensor connectors for corrosion or poor terminal tension. Hope this helps!

[@muhammadrashidjaved301]

@@Ecutestinglimited i have checked cam shaft connectors thy giving same voltage and have changed cam shaft sensor

[@muhammadrashidjaved301]

On camshft connector one is showing 5v and one is showing 4.9 .is that ok or something wrong?

[@Ecutestinglimited]

@@muhammadrashidjaved301 No, 4.9v is a good reading. If you have changed both sensors and the fault still remains then it could be the incorrect sensor for the vehicle, make sure you are buying OEM replacements specific for your vehicle. Again, it could be the ground wire is shorted to voltage, or a poor connection between the sensor connector and the sensor itself, so we would recommend completing these checks.

[@muhammadrashidjaved301]

Thank you

[@user-sl1xz8ys6p]

I am in South Africa where can I get my Ecu checked 8:26 8:26

[@Ecutestinglimited]

Hi. We offer a worldwide service so you can get your unit re-built no matter where you are! If you are looking to send a unit into us for testing/remanufacturing please fill in our online test form to get started: myaccount.ecutesting.com/ 👍 Any questions then please email our technical support team at [e-mail]

[@edwardngwenya7055]

​@@Ecutestinglimited😮

[@florinracean]

👍👍👍

[@supunpremathilaka9707]

Showing p1765 p1611 and p0335 .But vehical running

[@paradoxworkshop4659]

No codes, no start, 2003 Nissan 3.5l V6 that sat for a year. Will replace CPS and try to get it to start.

[@adoumabdelhakim5460]

Thank you i am to chad

[@Ecutestinglimited]

Hi. No problem, we are glad you enjoyed the video! If you are looking to send a unit into us for testing/remanufacturing, we do offer a worldwide service so you can get your unit re-built no matter where you are! Fill in our online test form to get started: myaccount.ecutesting.com/ 👍

[@King786_]

@@Ecutestinglimited Can a fuse box corrosion cause the car get to get no power to ECU ? Thanks