Fuel Injector Testing: Noid Light vs Power Probe vs Test Light (Honda)
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- เผยแพร่เมื่อ 13 ก.ค. 2024
- In this video I show you how I test the circuitry on an older Honda fuel injector using a noid light, a test light and a Power Probe. The vehicle shown in the video is a 2000 Honda Civic LX. These are not the only ways to test a fuel injector system.
Please note: This is a conventional multi port fuel injector system that I am testing. It is NOT one of the newer Gasoline Direct Injection (GDI) systems that use much higher pressures and have the fuel injector inside the cylinder. Do not unplug a fuel injector on a system you are not familiar with, you can do severe engine damage.
Misfires and fuel systems can be tricky to diagnose. If you are unsure about anything you might want to have a trusted mechanic diagnose it for you.
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*Tools*
This channel earns a small commission using some of these links - at no additional cost to you.
PowerProbe IV: amzn.to/2zQqcFL
OTC Noid Light Set: amzn.to/2NOWRDI
OTC 3636 Test Light: amzn.to/2zPEnei
OTC Leak Down Tester: amzn.to/2NMtIcf
The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive
My miss fire just started and is sporadic. P0204 jeep liberty. At times I turn on the vehicle it acts normal and other times on start is misfires cylinder 4. I swapped the coils and spark plugs to see if it would follow and it doesn't. Now I believe it comes down to the injector acting sporadic or from the the electrical plug. Any thoughts?
V.
I watched so many videos just to get this one answer.. Thank you..
The kind of explanation I never saw in the period of 25 years, it's awesome .The tools and way you trouble shooting fantastic and perfect.
I appreciate the comment, thanks!
Damn!
You just doubled my knowledge on computer controlled injection system!
I have a 93 accord! Yours looks almost exactly like mine!
Great video!
👍
Thanks for the bonus footage! I thought you were gonna leave us hanging. It would've been like watching a movie and not showing us the ending.
Absolutely loved the bonus footage showing the leak down test. I was wondering what the problem was up until that point. Thanks for taking the time and trouble of making this excellent, nay, Superior video, and sharing your skill and knowledge with us! Thanks again, David
I appreciate the comment, thank you!
My Jeep is a "crank, no start" and I needed a refresher on how to use a Noid light. I learned more than I was looking for by watching this video. Thanks Dave.
I've looked at a lot of videos about misfire diagnosis and using the Power Probe and this is by far the best that I've seen. Clear, simple instructions. You've taken out some of the mystery and confusion that others gave.
I appreciate the comment, thank you!
Excellent Video, your ability to make things easy to understand for an amateur mechanic is unmatched. Please keep them coming!!
Thank you, I appreciate the comment!
I'm not sure why it took me so long to find your channel, you earned a sub today for sure. We have many similarities, not least of which is our addiction to quality automotive tools. What I really like about your channel is the way you explain how these systems work first, which gives a reliable compass to look for solutions. It was fun to see you use PP4 for the fuel injector. Eric O sent me one of those but I've never used the fuel injector feature. Once I see the test light flashing, I tend to follow the ScannerDanner blueprint of looking at current waveforms. There are lots of right ways to get to the answer.
Enjoyed the video. Really glad you showed the bonus showing the problem. Thank you for doing the video.
Thank you for the comment, I really appreciate it!
The bonus made the difference between this video and the others. Excellent job .
Found this video while searching for noid lights. Thanks for this very clear explanation! Subscribed right away to your channel.
Thanks for the comment and welcome!
Your videos are really very informative. Lots of info and professionally explained. Like the way you stay on topic and explain what is going on. Excellent
Thank you!
The best yet. Keep em coming
Great video, really most helpful one out there on injectors. Thanks!
Thanks!
Really liked the video and explanations being simple and easy to understand. Thank you.
Thank you, I appreciate the comment!
@@BigDog50001 will not the reverse voltage spike flows back to the power feed side and cause short circuit?? Analogy to a diode in a relay, is similar diode or capacitor necessary to absorb the reverse spike and protect the circuit and the solenoid itself?? Please kindly elaborate a bit more.
Thank you for taking the time to educate! I really appreciate it!!
You've got yourself a new subscriber my friend 🎉
Welcome!
This is one of the best vid it explains very well n easy to understand wht need to be done if you myb only hv test light or noid light thnks for the video u gained a follower n a subscriber
Thanks and welcome!
Thank you for giving us the final diagnosis - not having it would have been a "tough itch to scratch."
Excellent explanation of how a fuel injector fires; I did not know that. Thank you.
I infact did enjoy the bonus footage
Awesome, thanks 👍!
Great video and information. You got me towards the end. I was thinking dude what do you check next if the darn injector is getting power and fuel. Then right before I was about to type you the ?, you jumped in with the bonus video of checking the compression and leak down. After that I was saying out loud in my garage to the point my neighbor looked over as I was yelling this guy is awesome and very knowledgeable and lest us lay people know each step to achieve results. I am working on a 2012 dodge caravan with the 3.6 pentastar engine but it looks like your steps will work. I replaced a ton of stuff that requires relearn but I can’t get the van to barely run. I don’t think bank 2 cylinders are firing. I am going to start at your step 1. Thank you Sir for helping out us little people who can’t afford to send the vehicle to a shop.
Thank you, I appreciate the comment!
Where have this guy been all my life great stuff! Just subbed
lol, thank you for the comment and welcome!
stumbled across this. you sir are THE MAN!. I have been fighting a no start on a Harley for weeks. It started off with a broken wire going to the throttle body then turned into a mess.
I appreciate the comment, thank you!
What was the problem ?
Calling someone out within the first second of a video; now thats a bold move... I LIKE IT! :)
lol
Excellent display and knowledge of work!
Super explanation 👌. Thanks for the time to put it together and sharing.
You bet 👍!
Great video. Keep it up
Thanks for the excellent demonstration. This was very good.
Rob's Wrenches Thank you!
Excellent!! Great work, very helpful, to the point!, keep it up the good work!!
Another EXCELLENT instruction video - YES , I did GREATLY ENJOY . You are indeed and EXCELLENT Technician. Many thanks for sharing 😊👍👍👍✌️✌️✌️
Thank you, I appreciate the comment!
Thank you so much. Best video out there on the topic!
Dear sir,ive just come across this video.
A most exellent video.very clear and precise and methodical.
Keep up the great videos.steve from the uk.
Thanks 👍!
Thank you very much! Easy and clear explanation. I Like it in this way.
Thanks for the comment!
Great tutorial video, from beginning to the end............... Thanks!
Thank you, I'm faimilar with diesels but petrols are a completely different headache. I enjoy the knowledge for troubleshooting :)
Thanks for the comment!
Best video on injectors!
Thanks!
Excellent presentation.
Nice and easy, good demo.
Really excellent, clear and very usefull. Well done sir.
Love that Bonus footage. that told the tail.
Thank you for the comment!
Excellent troubleshooting
Thanks 👍!
Subscribed. Great video thanks. Hello from Australia
Keep them coming mate the info is good .
I appreciate the comment, thanks!
Nice work! Of course the owner is sick to hear the news! Thanks for the video!
👍
Love my power probe 4 is a great tool
Clear and concise , well explained.
Thanks!
Good bonus with scope
A Great job, very informative. Off to price up some kit. Thank you.
Thanks!
Excellent video, thanks for sharing. Cheers
Thank you for the comment!
Excellent and thorough
Thanks for the comment 👍!
This must be as good an instructional video for any automotive troubleshooting as I have ever seen. Great job,
Big Dog50001 Automotive
I appreciate the comment, thank you!
Thank you sir, very well done, very informative .
I appreciate the comment, thanks!
really great diagnosing!
Thanks 👍!
This is quality content. Keep it up.
Thanks 👍!
Thanks, helped a lot !!
Great video 👍
I just love this site brilliant.
THANKS..
👍
Great, clear video. Thank You
I appreciate the comment, thanks!
This was a great video. I need to get a power probe...just haven't pulled the trigger on it yet.
Thanks! It is a nice tool to have, I definitely use mine a lot.
Great video ✌️✌️
Very nice video. Thank you very much. I wish there was a scope out there that wasn't so expensive that would show the fuel injector opening.
Thank you for the comment. Here is a scope I have that is not too much money: goo.gl/FU9AAA
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Disclosure: This channel earns a small commission using some of these links - at no additional cost to you.
The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive
Im a stingy sob. U direct to point and thorough.
good comparison! and nice tools!
The Disgruntled Mechanic Thanks Mike!
Thank you for the video. Good job.
Thanks!
Very good video and explanation.
Thanks!
Amazing tutorial!
Thanks 👍!
VERY GOOD EXPLANATIONS.
Thanks!
Super indicative video, keep it up bro,,
👍
Very good thank you.
just got a power probe 4 love it
I like mine, I think they are a good little tool to have in the tool box. Thanks for the input!
nice video, refreshed my memory. good will always over come the bad. thats for the people that gave a thumbs down.
I appreciate the comment, thank you!
Very helpful video. Wanna more!
lol thanks!
Well done!!
Thanks!
Thank you ❤
Time to upgrade, thanks
Great video
Thanks!
Excellent
Thanks!
The best video
Thanks!
Nice !
Good info!! Thanks
Thanks for the comment!
This is a really good video! Thanks Big Dog.
Thanks for the comment!
I use a scope often but I didn't know about the pintle hump on the waveform; thanks.
Thank you for the comment!
Great video, thank you. My 1994 Dodge Dakota 5.2 is driving and running, but throwing an intermittent code for the injector output signal circuit. Even when running fine, I get power (test light bright on all injectors power side), but no ground (no pulsating light to ground side on any injector). Do you know what may cause this... And how is the truck running with no ground to the injectors??
That was nice, thanks
Thank you for the comment.
Thank you for Brilliant video, one question please, can I carry out same test using power probe 4 for testing Diesel injector?
Good video
I have watched some of your vids too, great content! Thanks for the comment!
Top gun mechanic
Thanks!
Thank you for the video. I am trying to diagnose a Misfire cylinder 1 P301 hyundai v6. I am at the fuel diagnosis stage. My suspicion is not ignition (spark) based on maintenance and tests of ignition. Timing seems not an issue as cylinder specific on this DOHC timing would cause entire bank issues (misfires P300). Assuming that not seeing the pintile spray pattern through these tests is an issue however your stating that the Power probe 4 showing more data compared to a known good injector shows simpler pulse pattern thus not injector issue.
thanks
Thank You.
You bet!
Top notch
Allan Stein Thank you.
I just subscribed your channel. Thanks for sharing your video. I just have a question for the power probe. Where do you connect the power probe to test the injector? Is it in the connector or to the injector directly? And also the NOID will it work to mercedes benz injectors connector
Great video So if i back probe plugged in injector with my power probe 4 and i get data like rest of cylinders does that mean injector is good ? Or just circuit system to injector is good
I always watch your videos and I love them, all of them, but on index 2:49... do you expect us to buy that equipment?
Thankyou. Do more on test light
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Terimakasih, sangat membantu👍
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good vid tks
Thank you.