Diesel Pressure Sensor Testing

Diesel Pressure Sensor Testing
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Explains how to test the diesel injection fuel pressure sensor. This is 3 wire sensor, with reference, signal and ground. Common rail Diesel fuel injection is now the state of the art in engine injection. The Bosch Piezoelectric (crystal) injector operates using a crystal stack, usually Quartz, that changes size when energized. The piezoelectric effect states that when a crystal such a Quarts is squeezed an electric current is generated. By the same token, when electricity is applied to the crystal is changes shape. This minute change in crystal size is used to trigger a small fuel chamber on and off. In turn, this chamber creates a pressure differential at the top of the injector which make it open and close. See further information here.
Presented using advanced software CG animation technology to help you understand. Part of our Diesel and electronic series shown here on this channel. Enjoy...
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[@ADPTraining]

I also suggest you look up our series here in this channel titled "Make Your Own Diagnostic Equipment", which also have a Google-Play APP and it's availble as printed book on Amazon and where books are sold. Thanks.

[@ADPTraining]

Most appreciated... remember that you can always reach us by LinkedIn (Mandy Concepcion), here at our KZbin channel, FB and Twitter. You may reach us by phone as well with any questions. We'd like to be you one stop training solution. Towards the end of next year we'll have complete automotive technology training courses. Thanks again.

[@paulmersalayon375]

Sir what is the problem of my car,,,no power in number 1 n 4 diesel injector...no electrity no power at all...i already change the computer box and the harness but still the same problem...

[@bric2661]

This is a great fast way of verifying no or very low fuel pressure instead of setting up a fuel pressure gauge.

[@bric2661]

Thanks, I took delivery of your paper back, 'Automotive Sensor Testing' it is easy to read and understand. I am going to have to buy Injector, Coil, Evap etc.

[@airplusautotuning6347]

Great video. My 2014 Toyota Fortuner 2.5L D4d Diesel has 6 pin Fuel Pressure Sensor, instead of 3 pin, what are these 6 pins (function) for ?

[@arivuazhagan442]

Thanku sir very good explain

[@tienle6200]

Good, thanks

[@aliedil5415]

I like this intergalactic voice

[@nickayivor8432]

Thank you 👍

[@ADPTraining]

👍❤️🙏

[@gurseeratsingh2510]

Sir I own Hyundai Verna 2008 Indian version. There comes a DTC code P1186 or Check engine light at uncertain times. I am not able to diagnose whether it is fuel pressure sensor or fuel pressure regulator valve. After that code vehicle won't go beyond 3000RPM and shutsoff 1-2 times

[@MarkEwington]

I have the same issue. Did u find the fault?

[@nigelclark7360]

Good info

[@ADPTraining]

Thanks for posting... autodiagnosticsandpublishing.com/

[@asenacadimate616]

Hi ... I'm having a prob here...fuel pressure sensor is getting 5.1volts when it should be only 2.5-5volts , any idea where those extra volts coming from?

[@ADPTraining]

Ok, I'm not understanding. 3 wire sensor... Ground, 5 volt-reference and signal. What are getting on signal. Go here for more... www.autodiagnosticsandpublishing.com/Automotive_Diagnostic_Repair_Book_Catalog.htm

[@TNJ55]

Hi 1. How similar are the codes on the computer via the interface to gasoline or diesel cars? 2. Have you presented somewhere the verification values ​​with the measuring device at the car's sensors? Thank you!

[@ADPTraining]

Very different.

[@TNJ55]

@@ADPTraining ???

[@frontlinemedia4270]

So if you get a lower signal voltage, does that mean the pressure sensor is bad?

[@ADPTraining]

If it's grounded all the time, probably yes. If you scope the signal and it changes momentarily then not. www.autodiagnosticsandpublishing.com/OBD_2_DLC_Health_Checker.html

[@graysongounder9164]

Hi, if i get 1V on signal wire with key on, does it mean sensor is bad?

[@ADPTraining]

More than that, look up the signal table and compare. www.autodiagnosticsandpublishing.com/GDI_CRDI_Direct_Injector_Tester.html

[@OsmanGaziPasha]

Thanks

[@arronverma4722]

Hi I've got Porsche Cayenne turbo 2012 3.0 diesel I left headlights on come back to car 3 days after being in unit... I tried starting the car but it wouldn't start as battery was low so I've put jump leads on and car cranks but don't start so I've tried boost pack jumped the car, it started but immediately cuts off do you know why this is happening I'm so confused in what's gone wrong and I'm stuck I've paid a lot of money for this car to stop the engine from staying on and working.... Can you help?

[@ADPTraining]

First if all, replace the battery with a new Porsche battery. Don't charge it, replace it. New vehicles especially German cars, and just about all of them 2017 and up, the computer does a check on the battery, if not right, it'll kill the engine. The fuse panel is the computer that checks battery health. Why? To protect all the onboard modules/computers. Besides man, you bought a Porsche and think you can jump it like an old VW Beetle?

[@paulmersalayon375]

I have a toyota hilux diesel engine,my problem is i have no pulse in number 1 n 4 injector,,,no power on it,,,,i already change the computer and the harness but the same problem,,,no electrity in 1 n 4 injector...what is the problem

[@ADPTraining]

I don't know. Not enough information.

[@shafficoolalibocas6918]

Hi have a Isuzu Diesel code 192 fuel rail pressure sensor low voltage I change the sensor some thing not reseting and test the wire 5v good ground good but the sensor line when test with a test light ,the light stay on not momentary. can you help me thank you

[@ADPTraining]

Shafficool ali bocas FOrst off, do not check the sensor signal line with a test light. This circuit is low current and not meant to be tested with a test light. On the other hand, you may only test the signal wire with the sensor connected, since it has to output a varying voltage, so reconnect and test.....Here's out publication that deals with Diesel Injection...... sites.fastspring.com/autodiagnosticsandpublishing/product/diesel_common_rail_injection ..... Here's out pdf CATALOG as well..... www.autodiagnosticsandpublishing.com/Automotive_Diagnostic_Repair_Book_Catalog.htm

[@shafficoolalibocas6918]

ADPTraining Thank you

[@ADPTraining]

Just in case, here's our PDF-Book CATALOG... www.autodiagnosticsandpublishing.com/Automotive_Diagnostic_Repair_Book_Catalog.htm Here's our Repair SOFTWARE CATALOG.... www.autodiagnosticsandpublishing.com/auto_repair_software_catalog.html

[@davidgiddings8506]

ADPTraining the

[@tahershaikh1926]

i want hyundai accent crdi rail pressure censor wer will i get

[@ADPTraining]

Thanks for sharing... Here's the publication on Direct Injection.... sites.fastspring.com/autodiagnosticsandpublishing/product/diesel_common_rail_injection

[@allaz3898]

How can we test high rail pressure safely without this FRP sensor To know if the hp fuel pump is good

[@ADPTraining]

Unthread the FRP Sensor and connect a high pressure gauge.

[@allaz3898]

I wonder if you direct me to a gauge that fit FRP thread

[@frontlinemedia4270]

@@ADPTraining where can we get this gauge?

[@koriakinides]

@@frontlinemedia4270 suggestion for you and All az - first find on youtube video how to check or calculate thread size, then whatch another video on how to find high pressure gauges, then if you need - next video about thread adapters. But u know guys, if you can not figure it out by your self - maybe, just maybe it will be better to take your car to a profesionals?

[@frontlinemedia4270]

@@koriakinides The so called professionals were completely wrong about was wrong with my vehicle and that's what led to all these ridiculous tests in the first place. I will never go to any of these ppl ever again.

[@orlandokelly418]

c7 cat engine injecter wier lime

[@ADPTraining]

Ok

[@rolynpaladinracan7043]

Hello, I have a Terracan 2.9crdi model 2004. Yesterday I had to change the valve cover so I removed the pipes from the common rail that goes to the injectors and unplugged the electricity from them and then I removed the cover. Put the new cover on and put everything back in place, pumped fuel with the hand pump and started the car, it ran for about 10 seconds and then it stopped. Now I can't get it to start. I connected it to computer but no errors. Anyone have an idea what could be wrong.

[@ADPTraining]

If you even cycled the key, the the ECM might have set a pending code.

[@rolynpaladinracan7043]

yes.. also check the pressure its good. but i check the wire on injector they no electrcity no pulse

[@rolynpaladinracan7043]

where do i find this loction pressure sensor in terracan

[@drfjy9641]

Hindhi me batao sar samjane nahi aara

[@ADPTraining]

Bashusta bandika.

[@hinojosa552]

That is wrong

[@ADPTraining]

Nope