HOW TO TEST A KNOCK SENSOR on any CAR.

The video shows how to bench test a knock sensor from a toyota corolla or a toyota yaris car. Bench testing using a multimeter, an oscilloscope, a hammer and an air hammer.

[@TrevorS38]

This is gold. I am going to have to go through all of your videos when I have time. Thanks for making this!

[@jlsetnuper]

thanks for watching

[@khuludahmed1800]

very rare method i have seen for first time good job 👍

[@abnews4897]

very very good demonstration thank you very much

[@jlsetnuper]

thanks for watching

[@sharasowmya1257]

Very useful information... thanks a lot

[@jlsetnuper]

Thanks for watching

[@esmelinterreroe.5007]

And how do you test the 3-pin one, like the Honda D17, for example?

[@MdShahin-nm7xw]

Awesome explanat new subscribed

[@jlsetnuper]

Thank You..

[@nitrofish1974]

Awesome video 📹 👏 👌 👍

[@jlsetnuper]

Thank you

[@amarabdelli487]

Thanks for sharing

[@jlsetnuper]

Thanks for viewing

[@fixathome2273]

nice content

[@jlsetnuper]

Thanks

[@sanchesxxx1245]

what kind of an oscilloscope is that? can you provide us with some info please? p.s:Nice demonstration! thanks alot!

[@jlsetnuper]

it is a pocket oscilloscope bought from ebay, just look for Oscilloscope DSO188..

[@sanchesxxx1245]

@@jlsetnuper thank you!!!

[@benjaminduliguez5420]

Sir ..?. One knock sensor has two wires connection.. can be change. Connection

[@jlsetnuper]

thanks for watching..I have not tried it but maybe it will work..

[@bluedrew]

My shop manual says spec is approximately 4.87 mega ohms. Doesn't give a tolerance. My reading is like 6.8 mega ohms. Do u think it is bad?

[@jlsetnuper]

thanks for watching..I think its too high..but if your engine runs fine, i think sensor is okey

[@ng6585]

If capacitance is more will it send wrong singal to ecu ?

[@jlsetnuper]

Do you mean resistance is high? Yes it will..

[@ng6585]

@@jlsetnuper resistance is ok but capacitance is not in specs.

[@jlsetnuper]

@@ng6585 if you got a service manual and it is not with in spec..it should be replace

[@abrahamjw7]

I have a kia sportage in the manual service say that the knock sensor should be 2v - 3v but when I test with multimeter actually show 150mv (note i testing with the ks fixed in the engine directly, is good o bad ?

[@jlsetnuper]

Some car has different sensor specifications..but try to hook up a scan tool ,if there is no fault on knock sensor , dont replace it

[@betorocha6125]

I have a 2005 gx470, I have seen the resistance test done by you and I've also seen another video where they test a similar test. Except in that video they said that the knock sensor should read 200.0 of resistance for it to be good? I'm confused. The sensor looks similar to the one in this video and the one that is currently on my 2uzfe engine. Which one is it? Or does every sensor have their own way of testing good?
This is for when you tested in the ohms position on the multimeter. In the beginning of the video. You said that a good sensor will have no continuity.

[@jlsetnuper]

thanks for watching...pls watch the video again , a good sensor has no continuity between the BODY OF THE SENSOR AND THE PINS ....and 200 OHMS BETWEEN THE PINS..

[@betorocha6125]

Thank you for your quick response. I completely forgot that step that show continuity between pins. Mine is definitely bad then. Thank you for making this video explaining the testing methods for knock sensors. 🤘🏼

[@guillermo5396]

Muy bien excelente, justo lo que ocupaba saludos

[@jlsetnuper]

Gracias mi amigo

[@khodayehrangekaman315]

HNY . 👍👏👌

[@jlsetnuper]

thanks for watching