Diesel Piezo Injector Operation

[@davesterl]

Find the items that are used on the Dave Sterl channel in the Amazon shop. www.amazon.co.uk/shop/davesterl

[@PhillipBailey]

Ordered two of those hood lights. Shipped to Canada. Let's see how long that takes...

[@davesterl]

@@PhillipBailey excellent let us know what you think of them, I'm subbed to your channel

[@PhillipBailey]

@@davesterl those lights are not available from Amazon in North America anywhere .

[@davesterl]

@@PhillipBailey do you think you will get the items you ordered ok?

[@PhillipBailey]

@@davesterl Amazon said they are on their way.

[@markeastwood954]

Great video Dave and very relevant to me today. Got a 1.6 caddy 2014 in this morning running rough with injector 4 P code. runs ok till injector heats up and as you said Ecm turns power off to that injector when it faults and glowplug light will flash. i was able to catch the fault with the scope as the injector got hot and see the Ecu turn the power off. quick resistance and insulation test to confirm and it failed. Other 3 passed at 100volts and about 200k ohms. And when it cooled down it passed the resistance and insulation test. So off to VW Monday for a new injector. You enjoying the new Pico. Thanks for the vids . Mark

[@davesterl]

Good one there Mark. Yes, i think it's the heat of the engine that is a factor in breaking down the piezo crystals and contributing to the high failure rate, hence a lot of manufacturers have moved back to solenoid (mass solenoid). I did a vid on the wee piezo pick up tool i used and showed a change in temperature varies the output on a kitchen tap. The Pico 4425a is the daddy for automotive for sure and the auto ranging, auto zeroing, self powered amp clamp is a great addition. Need deep pockets tho. Cheers Dave

[@steveguest8028]

Great video Dave very informative 👍

[@CoolAirVw]

I learned something important on this one.

[@davesterl]

Hey Richard, thanks for dropping by

[@scotspie501douglas7]

OMG what happened to good old Lucas CSV injectors

[@PhillipBailey]

Well done. Very interesting indeed. I need a Pico...

[@davesterl]

Cheers Philip

[@TheGibby3340]

Very different signature. As you said...completely different animal. 👍

[@davesterl]

Aye ian, a crucial part of the demo i think

[@SMAutomotive]

Great bit of info as usual Dave, also I have that current clamp in my basket for a while now, was undecided, so I think I'll get it now after seeing it in use.

[@davesterl]

Cheers Simon, the amp clamp is a good job

[@iansworkshop]

Nice one Dave, don’t know how I missed this video, it didn’t come up on my KZbin notifications, ....but I went into your channel to look for the track rod end tool you have , and came across this , maybe a glitch in KZbin , but as usual not disappointed 👍

[@Anode_Diagnostics]

Great video Dave, by the look of the current and voltage traces it looks like they are shunting the back EMF through the coil to collapse the piezo stack and is the little dog leg on the negative current pulse mechanical movement of the injector closing off?, that's what it looks like to me anyway.

[@davesterl]

yeah i think you're right, good observation

[@intelligentauto737]

Interesting stuff Dave. Keep it coming.

[@davesterl]

Cheers Gary

[@mikeberry304]

Nice one Dave , Sandy and his metal ball eh 🤣🤣🤣🤣👍, its crazyvhiw the pcm shuts off the signal if there is s fault , that's good then to do a test on it , cheers Dave , like the new lamp 👍

[@davesterl]

Cheers Mike, our Sandy- Living Legend

[@petecurran3995]

Had one go bad and dumped us on the motorway. Got a P0203 and confirmed with ohms test 0.8ohm short ckt. Question is: replace all 4, as car's done a massive 41k? 🙄🤪 Great vid, Dave! 👌🏻

[@niallcosgrove5596]

Geart video very interesting, makes think more and more about investing into the Pico scope but I'm still learning with my old snapon vantage 😅

[@davesterl]

Go for it!

[@leonardtaggart]

Davy it's not related to this video but have you ever had anyone ask you about a tapping noise from the 2018 2.0tdi CR motors?

[@davesterl]

Nothing comes to mind. Freshest TDI i would get is about 2015 up to euro5. Anything after that are TFSI

[@leonardtaggart]

@@davesterl I'll get the trusty stethoscope out and have a listen but I think it's from the high pressure fuel pump.

[@sandyande]

Cheers Dave for video, that little piezo pickup could work great as a "first look" sensor to show u actually got movement of the injector pintle and actual fuel flowing through them!! Cheers sandy

[@davesterl]

yeah Sandy, up to date screwdriver. I hope you don't make a copyright claim!!!!

[@d.d4184]

Good video. I could feel Sandys pain watching that video. Wouldn't you kick the lad around the workshop who left the ball bearing in the line.

[@paulandrews1548]

👍

[@davesterl]

Had the covid jab yesterday, Paul. Not too good this morning

[@paulandrews1548]

@@davesterl Thanks very much Dave 😬 get mine on Sunday. Something to look forward to.👍

[@carstengotfredsen160]

👍👍👍

[@davesterl]

cheers Carsten