In this video I take you through the process I use to check fuel injectors on a car that is setting lean codes. After eliminating all possible variables and determining it is a fuel delivery issue we need a way to prove it. Let's have a look. -Enjoy!
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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.
If an SMA Video has helped you out please consider giving using "Patreon" to help support us. The videos take real time to create and pull us away from real work that pays our bills. CLICK HERE: https://www.patreon.com/southmainauto
CHECK OUT OUR "SMA SWAG" STORE! Go on Teespring and get your very own SMA merch!
https://teespring.com/stores/the-sma-store
If you don't like Patreon feel free to use the "PayPal Me" link: https://www.paypal.me/SouthMainAuto
The South Main Auto Amazon Store:
https://www.amazon.com/shop/southmainautorepairavoca
AES Wave Automotive Diagnostic Tools: https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=https://www.aeswave.com/Miscellaneous-p9347.html
Thank you for all the continuing support!
--Eric & Vanessa O.
Feel like sending some swag to SMA because you love the videos but don't know where to send it?
Just ship it here:
South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.
How do you monitor fuel rail pressure on a scope? What scope pickup/adapter? Guess could use old pressure gauge and get similar results.
Can anybody tell me where he plugged in the pressure transducer to get those readings? I’m assuming he’s getting it from the fuel rail? Thanks
Great job
Awesome video! Thank you!
thank you so much for this tests, is this test available for both diesel and petrol engine ?
I don't understand why you worry about negative comments. I've only seen a small handful in all the hundreds of videos you have. Do you delete the negative ones? And who is Ivan? I keep asking, but no one responds.
this technique is applicable for both types of engine; diesel and petrol. thanks so much
Great video as always! Fuel pressure is so important – small example – we had a F-700 with a 429ci fuel injected gas engine that had exhaust that smelled so rich it would burn your eyes. It had low fuel pressure ended up being the fuel pump. My theory was the injectors didn't have enough pressure being delivered and were squirting fuel instead of atomizing.
what would be the possibility of it being the connector controlling those two failed
Hey Eric.. can you offer any info on how you T'd the wps500 into the fuel rail? I'm looking at this same job for a honda and a mazda and need to arrange for connectors…
Nice work on getting picked up by a picoscope news release. Strange seeing that in the UK marketplace.🤣👌🏽👍🏼🎖
So Eric, after replacing all 6 injectors did it fix the problem..?
Lean Ist good
A big F bomb to whoever dislikes Erics videos
I watch because you use technology and I want to know how to also. Did you fire the fuel pump with scan tool or short the relay to power it?
This seems way faster than The good ole fashion scan tool with a pressure guage. Using the harness instead of going directly to the injector saves a lot of time. Great diagnoses.
Your a doctor of cars
Interesting that the 2 injectors that were different were on the other connector/harness ….
Oh my bad, I should have kept watching. That's fuel pressure on the pico
What are your settings on the Pico, I'm just wondering how high those injectors spike when de-energized?
Good diag would of been nice to have known good peco data but sometimes there isn't any yet @SouthMainAutoRepairLLC
Good video Eric O Great work on this one @SouthMainAutoRepairLLC
Really nice diagnosis. My engineering experience makes me think the only good injector may be 5, but 2 and 6 are definitely bad since the pulse width is shorter than the other four indicating the injector may not be responding to all the pulses.
You should of use the hook on the injectors try that once like to see how it turns out
Whenever I fall asleep with youtube playing this channel always lands up playing eventually and the sound of an impact wrench wakes me up 🙂
have watched quite a few of your video's, some of the best i have ever seen if i lived in NY you would be working on my cars
Hi. I got a question. I got a 09 Silverado and I got the p0700 code but it's not throwing another code with it. And my traction control light is on and stabilitrak . And I dont have the gear indicator on dash. And it has a 1 2 hard shift. Just wondering if you had any ideas? Thanks
Plz help. I just changed my throttle body with position new position sensor because I was getting reduced engine power. It helped a couple months now its acting up again. Idling low to the point it cuts off. Used my obd reader and got codes p0220 and p2135. I looked them up and both seem to be the same Idk. Can u plz help me.
You ever open the astro box from your last w.u.w?
excellent video like always! keep up the good work
You know Gary, the best way to fix this problem is to tell the owner to buy a Toyota. LOL
Informative video, but it will be nice to se the fix.
i cant remember if you can do a fuel injector on off toggle on this car but, what i was getting at could you do a running drop test as well with the same pressure tester
I'm listening
Yep, seeing how you use modern technology to identify faults is the very reason I watch your channel. Keep up the good work.
1997 f250 5.8l . Ford no longer makes fuel rail kits, mine is shot, can't find aftermarket parts and salvage yard parts are equally bad. Don't want to impose but, I figured " what the hell" I'll throw out a Hail Mary. Any ideas?
What were you using to trigger the fuel pump?
?
otc and a fuel pressure tester pretty close don't you think
Absolute genius! I normally pull the injectors and run em through a flow meter. You are going to save me a lot of time!
You are thorough it makes sense. Thanks for the video.
Never under estimate the spark , just experienced this on my 2000 crv lean condition began with new injectors ,fuel pump relay, fuel regulator ,fuel pump and sending unit ….Not …New distributor and rotor as well as new exhaust cat and up and down oxygen sensors….. Not …It WAS Ignition coil and ignition control module causing misfire 219,000 clicks and still purring like a kitten Hondas B20 baby !
Great diagnoses. Glad you're recommending all injectors…was curious as I was watching what recommendation you'd make. Ma'am the fuel injectors are "relatively" messed up.
My chevy express is doing this same thing. Random misfire
SMA Decal. How do I purchase a couple?
I’ve tried in the past send the PayPal request without success. Trying to figure out if I got powers and grounds, already checked the fuse in my phone. Need help in troubleshooting this missing decal no start.
Do you have a link for the test light you use?
Thanks
A little above my tool grade…
But I am a DIYer
VERY INFORMATIVE. GREAT VIDEO.
Would looking at rate of decay or how long it takes to drop a certain amount of fuel pressure (i.e 5 PSI) give a more accurate reading on fuel injector performance?
Before you give all of the thumbs down and negative comments because I am using modern technology to repair a car keep in mind I run a professional repair shop and I am not a DIY'er. Thanks for considering that first. -Enjoy!