Electronic Fuel Injector Tester

[@bizzlemedia]

I love videos like this. Easy to follow, understandable from any amateur enthusiast's point of view. Great production journey and fabulous conclusion. One of the all time best feelings in the world is felt after the successful completion of a home-grown project and you guide your viewers through the process and make us feel a sense of euphoria when the project is completed. Good job sir!

[@peterwesterlund]

You're like a modern version of my grandpa. Love it. Watching your videos every sunday night (living in sweden). It's a nice routine.

[@lovepngpeople4637]

Hilow sir,,can you give me a diagram for that and parts you used i am very interesting for to try to make,please thank yuo,

[@HackaweekTV]

This weekend was spent cleaning up the VERY messed up garage so I have more room to work on the beast! Next week you'll see Part 8. :)

[@jimmypopp2695]

Will you adopt me...????? I just stumbled upon your channel. You are so awesome. thank you so much!!Stay well and safe my friend.

[@ryanworks35509]

I'm just learning a lot of electronics and also work as a mechanic. I built my own oscilliscope and next I'll be building my own fuel injector tester! I also made my own smoke machine! I like making my own tools

[@rajasinghams]

I love it. Hope to make my own injector tester

[@zerocool5878]

What perfect timing. I am in the middle of doing a head gasket on my nissan sentra currently waiting for the head to come back from the machine shop and I would like to clean my injectors by running some cleaner thru them with a syringe and this little mod box. I went thru my parts bins and I have everything to build this. I will use a different mosfet 200v 9a and a 1n4001 bc thats all I have. I will get this assembled tomorrow :) I also might 3d print the case if I feel up to it.

[@johnflesburg]

Thank you for this project. I found the files, watched the video and created the circuit on a breadboard. for the longest time (about 3 hours) I couldn't get the Astable side of the circuit working (and still can't using the resistor/capacitor values you have listed. I had to swap the resistors around in order to get the circuit working then I played around with frequencies a bit. I made a spreadsheet to calculate on time,off time, and duty cycle using R5, R6, and C7 as variables. I ended up changing R5=390 Ohms. I'm going to try to modify this circuit to drive 6-8 fuel injectors so that I can set up a cleaning/testing station (with the injectors mounted in a rail above 6-8 graduated cylinders), and this DIY project was the right price. By the way, with R5 at 390 Ohms, the circuit (theoretically) runs at 48.82 Hz which equates to 5859 RPMs (48.82*60sec/min*2rev/injection). Pretty darn cool. (thanks for the tip {hack})

[@splashman63]

Did you build your cleaning/testing station I'm looking to do the same thing

[@tonyfremont]

I hope you got a scope and a good soldering iron. They're indispensable. Rigol 1054z is an incredible deal.

[@Spelter]

I thought I had to go with an Arduino and program it. But seeing your version, mine would be over-engineered. Thanks for this nice version, I underestimate the 555 because I'm way to young lol

[@DeanSegovis]

Yes it does. It's a 1n4742. Go to the project page and check the schematic.

[@badboydas]

Great project, I had to change R5 100 ohm resistor to 1k to get the astable side of the circuit to work.

[@knikula]

might be a cool to revisit this as a Propeller project for the Prop BOE...I've been tinkering with the Propeller chip for a few projects lately...

[@hachemtaleb5721]

Nice project thanks alot ! i gotta a question can i simply apply 12 v and pressure to test if the injector is clogged for speed testing ?

[@DeanSegovis]

It's a protection diode. The MOSFET is rated at 5 amps max current draw.

[@ezeinyeccionelectronica]

excellent video. Will there be a circuit for pulse generators for common rail injectors?

[@splashman63]

Hi Dean Hope all is well in NC Lived in Cary, but had to leave because my job, really miss it. Planning on retiring back there. Quick question what voltage for the capacitors? I watch this video years ago but didn't need the tester till now.

[@HackaweekTV]

As long as the are more than 12 V you''re good to go. I think mine were 50 V.

[@dynorat12]

do you think it would work for running the coils to get a kv reading to compare with the other coils or just to see if you have one weak or one that cuts out when hot what do you think thanks mark

[@torquewrenchjeff2622]

I wonder if a 1980's distributorless ignition would work when added to a newer car so that the injectors pulsed when needed. So I would keep the newer computer in the car but add the older computer so it would pulse injectors bypassing the security system since most newer cars security systems shut injectors down causing no start. See I believe these newer cars can be hacked easily and I am a mechanic but it is very hard to bypass this newer stuff.

[@amtpdb1]

Could you tell me what the wattages are for the resistors? I know this is a old thread, but I am hoping someone is watching it. Thanks in advance.

[@planker]

I like this video. The overall build and inspration of the video is Good. And off duty Mech. doing extra credit work. I've been there and off duty time is hard to get. Most Mech's do nothing later on to advance themselves, So wit that said .... Well Done. I had to build my own O-scope.

[@txrangerkidd222]

I have 2 questions: (1) at 08:29 in the top left corner of your circuit is that a diode or a resistor? (2) can you briefly explain how the mosfet addresses the current draw problem?

[@Chowmix12]

Dino, do you have a 3d printer yet?

[@Sim0nSii]

I made one myself back in the day except I put potentiometers instead of switches back then they will cost about $100.00 from otc if you got em from snap on it was more so I did one for $10.00

[@aragrox]

How does a regular fuel pump maintain pressure it's rated for?

[@guidosamson682]

Very nice. What is the serial number of the mosfet

[@HackaweekTV]

hackaweek.com/hacks/building-an-electronic-fuel-injector-tester/

[@francezandamela6065]

Hi my name its france,may i sk,which parts are needed to do this injector tester and its voltage?

[@poly672]

How could vary the frequency of oscillation to simulate an engine speeds between 1000 rpm and 7000 rpm ?

[@briho4565]

this tester can it be use on the new common rail injectors ? ( bosch,denso,delphy )

[@DeanSegovis]

Other people have done that with this circuit by changing the MOSFET to one with a higher amperage rating.

[@JaredReabow]

guessing you didn't get the resin

[@matsazilinayub615]

Sir. Where can i modify to make the variable speed.

[@Spelter]

Hey Dino. Years after I saw it, I have time to build it but I have a few questions: In the partslist of the tester, you write mF for the capacitators, but in the sematics they are uF. Am I right that uF is µF? I'm really confused and it is late in germany :) Also do I really need a Tantalum cap or can I use any cap?

[@sypernova6969]

Quick questions... If I were to put a switch in parallel to the push button, would it work to run the circuit for however long I wanted without having to hold it down? Also, is there a way to add times? right now, you have 1 sec, 5, sec, and through the switch on the right, continuous. how could I make a board that also offers, say, 1 minute? Thanks! Seb. PS: did you ever do kits?

[@_P0tat07_]

@hackaweaktv can you make voltage multipliers or a shocker?

[@officereloaded]

Can drive 4 injector at same time ? TKS

[@joes4330]

Awesome job!!! Would you be willing to make another one, I would be willing the pay. thanks

[@spickythetechnician7072]

what should the 4.7mf cap be reated at cuase i use a 4.7mf @25v and it shorted.

[@HackaweekTV]

25 V should be fine. Was it installed with the polarity the right way?

[@TheMechanicalStig]

Very informational video. I learned a lot from this. Thank you. 👌

[@DeanSegovis]

Not yet but one is in my future!

[@DeanSegovis]

I might do some kits.

[@DeanSegovis]

Thanks... I got an honorable mention and a prize. :)

[@lovepngpeople4637]

Hilow sir can you give a diagram for that,thank you,

[@maximillionvolovich6016]

hi I am interested in making this injector tester. you have provided a list of parts that I have sent to my local electronic store and they could give me some of the parts and prices. but other missing the type or part numbers for others. for example are the risistors 1/4 w 1/2 w I am a beginning beginner when it comes to electronics

[@dibraniuk]

thanks for the video but there is nothing on your web site about this project!

[@HackaweekTV]

Ahhh but there is! hackaweek.com/hacks/?p=1156

[@mrdouble]

Well, did you win?

[@andreaacme]

That MOSFET will not last long as it doesn't have a reverse diode (flyback) on the power end

[@donavons89]

Just be careful not no hydro lock the cylinder you could bend some valves

[@mayurwagh2289]

Great video. This is going to help me. Thank you Sir..

[@DeanSegovis]

Oh I have the resin... just need more time to put together the next video.

[@kurway]

DinoFab?

[@hansleymaharaj3521]

how do i incorporate the 556 dual timer into this circuit btw great vid i subbed and keep up the good work mate thanks again

[@JbotMischief]

Always enjoy your videos, keep it up :-)

[@CarMachanical]

Bro please mention capacitors value

[@CarMachanical]

How much voltage cappacitters please mention

[@HackaweekTV]

Anything greater than the maximum operating voltage.

[@smiley235]

He says at the end that he learnt about protection diodes

[@gerardolozadluna4149]

It would be nice if you can design Speed Motor and a small version what an PCM crankshaft cam sensor which OBU magnetic signal crown how are you can speed up a little more at 1,000 to 3 or 4000 RPMs I need you to see how the injectors works on a hundred different torch let's get together dude we can build something really nice to avoid all the hustle people goes through

[@andreaacme]

True mate, my bad. Still, better safe than sorry; I was just trying to help ;)

[@StrawhatRedHawk]

I love your vids !!

[@walterbaldemor2128]

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[@العراقالجريح-ج6س]

thank you tis this amezing

[@zizooo000ooo]

انت رائع = you are awesome