thanks for the shout out brother. keep up the great work. i can say scanner danner was the one that inspired me to make videos and got me into doing electrical diagnosis.
Well deserved brother. Thank you! Gotta say, scanner danner has really gotten the wheels moving for a ton of techs! He's done great work 👍 same here, he got me started on electrical as well
Great job man!!! So many great technicians mentioned I'm honored to have made the list.. that open/closed loop switching was an awesome demonstration!!! Nailed it my friend... Thanks for taking the time and sharing!
It's this kind of humility that makes you a great tech! We all will always have a lot to learn buddy, but you're sharing your knowledge and experience bud. This industry needs your exemplary contribution! So thank YOU for everything you put into your work buddy. And keep it coming! 😃
Amazing video. Been fighting my misfire for two weeks now. Replaced all 8 coils plugs and wires, fuel filter, throttle position sensor. Nothing worked. I replace upstream o2 sensor and boom runs like a dream
You make a good point that more specialized problems leads to a more narrow audience. However the internet is a strange thing. I never would have thought that some channels, like obscure math channels, would draw such a massive audience. In this rapidly growing arena of computer diagnostics, online learning is a great way to expand horizons.
GREAT video Mario . I am a retired tech of 35 years . refreshing to see such professionalism . You are good my friend . people really appreciate that , keep up the good work and keep the video's coming. B-rad.
He's a very sharp dude, and has a way of getting the info across that not allot of ppl can do so effortlessly. I don't think it's really about who's the best, but instead a collective resource. It's good to learn from as much techs as possible.
Eric is good, but I don't think anyone is more advanced than Ivan at pine hollow auto diagnostics. That man gets the hardest cars to work on I've ever seen and he nails them every time
Mario. This Steve Rob guy is trouble 😂😋 actually he is one of the most loyal supporters you'll find on youtube! Steve has done well~ coming from a peanut farmer ;) inside joke
Thank You First of All, I'm not a Mechanic Taught by Trade School, Just a Simple Shade Tree Mechanic, I Got 30 years of Working as a Automatic Screw Machinist. I'm Dealing with Learning these Codes on a Cheap Harbor Freight OBD2 Scanner, and when I find and Fix the Problem Something Else Pops Up. I should of Learn Diagnostic instead of Aero Space Work. I'm having a Misfire Problem and Bought all Plugs, Wires, one Ignition Coil, Compression testing, Injectors Working Clicking, Still Need to Fuel Pressure Test, 02 Sensor Testing, Monitor Short and Long Fuel Trims, Still Narrowing it Down. Thanks For Sharing Your Information to Help and Educate The Novice, Thank You Etc. Blessings Sent, The Shade Tree Mechanic.
Yup it all started with ScannerDanner for me too! Nice diag Mario. I've never seen anyone switch from open to closed loop with a scantool. Very cool. Thanks!
Thank you Bro., I have a 2006 Suburban 5.3 with the exact same diagnosis and now problem solved, I like the way you walk through the diagnosis know one could have done better
I wish I could have seen this video earlier I have a 08 Silverado with a 5.3 that was doing the exact same thing I took it to a local mechanic and he told me I had a bad lifter well after $2k my truck still doesn’t work so I got smart and went out and got my own scanner and thanks to your video I now know how to find my problem
DUDE! I just realized when I went to check on your videos to see why you haven't had anything up in a while it had me UNSUBSCRIBED!! Man I have some catching up to do now! Oh and I re-subed ;)
dude let me say that video was awesome i learned alot ..from start to finish ..and the shoutouts was important as well.. like you said sharing the knowledge now i know some other guys that i can check out as well ..and yes scanner Danner is awesome looking into taking classes soon when he gets back into Rosedale...loved the whole video ..thank you for the lesson.
just came across your channel the other day and got to say great job, i'm also watch every body you named and some you named i have to check out. I'm across the way here Cape Coral fl. Keep putting out great video's like this diag one. Every body knows how to change spark plugs. Great job bro !
Mario contador respeto me gusta tu forma de pensar y de compartir con la demás gente gracias por tu ayuda y el apoyo a tus otros compañeros si todos pensamos igual que tu este mundo seria otro muchas gracias 👍👍👍
👍👍👍. Nice one Mario. Nov.2017 my whole life changed when I went on scannerdanner premium as well. Then the whole RU-vid with the great guys u mentioned just expanded it to a whole other level. But Paul is what allowed for me for that door to be opened. I can't ever be grateful enough for that Man. Nice video though. I too when I see 02 codes with misfires was taught is the misfire the cause or the effect. Nice to point out the black wires for the 02 heater circuit. But question are all the 02 sensor with black wires the heater circuit? 🤔🤔 Knowing that will help other people with the wiring. I remember I had one 02 sensor chewed off completely from the harness side, not the 02 sensor and those harness connector wires are not ur standard white blue and 2 black wires. But knowing which one was what helped me with looking at the wiring diagram to re wire them correctly. Knowledge is power and with these great techs on here anything is possible. Keep doing ur thang brother god bless
I just ordered the same one Autel I IM608 it’s a great tool.can’t wait to get my hands.on it.Spend the extra money and get it from Curtis Hardin Out of South Africa. He offers full support on the software and hardware it is worth it.
Thank you I been working on my Chevy Tahoe 05 been having missfire I think I'm go get O2 sensors wish me luck otherwise I have appointment Tuesday at shop.
My suburban was doing the same thing same codes and i was told by pepboys it was the intake manifold, i replaced it with a brand-new one with gaskets, took it back pepboys, its the knock sensors, change those, took it back to pepboys, its the ignition coils. Now I know they didnt do any diagnoses like this mechanic did. Im out $243 and still have the same issue p0300, and pepboys offered to fix it for $891 when its probably just oxygen sensors
I love how scanner Danner was first lol. I learned so much from that dude crazy. First starting out on di work he was the go to for me. I'm sure your list isn't ordered in anyway but It just caught my eye
Ya man.. Cause n Effect is in play here. 🤔😜 Didn't exactly get to load test the wiring like you want when the test bulbs go wonky. Lol Good run down of all the inspiring channels..fully agree with you. All of them inspire me as well and learn from them too. Rock on Mario..Keep them rollin. Cheers Bro
thanks Mario I feel the same about paul danner , I been follow this guy for almost 5 or 6 years and he make me better tech, there is no way to pay him back,and the rest of the guys also they great I follow all of them , check ivan of pine hollow auto diagnostic , he is good too, but totally agreed in everything you said , thanks, keep the good work
Oh man, having bi-directional control was very helpful in this case. Did you say your using the Autel 908? I love the list of techs here. It's been years since I've watched TV. The best programs are right on RU-vid. I'm researching a can bus problem for a friend so I'll go over to Diagnose Dan and see what he's up too. You make a good point about getting views. The most watched video I have is "How to check transmission oil level on a Dodge". Great video Mario.
Yes I'm using the maxisys 908. Diagnose Dan is the man, great stuff! Sadly the general public will flock over the easiest things, maybe someday that'll change, as cars get even more complex lol maybe not. Thanks for watching Wyatt!
Hi Mario. Thanks for sharing your knowledge. I need your opinion on this. I Hebe a 2001 Chevy Silverado 1500 5.3 and I heave a po300 miss fire, I have already changed the 4 h2 sensors fixed a manifold problem that the scanner indicated me, I replaced the coil packs, the spark plugs and the cables And the fuel filter.and i still have the po300 miss fire problem.what do you think is wrong with my truck? I will appreciate your opinion. And thank you for your opinion in advance.
Que tal espero y este bien alo que pasa que le cambie las cabezas a una silverado 2005 porque pasaba agua pero después me prendió la luz y es el código p0300
I am fighting a p0300 on my 07 4.8L Chevy, that's my only code and my misfire counter is showing misfires on cylinder 6, 7, and 8 (torque pro app). Thing is my status is showing that computer is only using 1 o2 sensor for feedback as it says in a closed loop feedback fault. And ideas I'm thinking head gasket or computer since I changed both sensors to new oem.
Mario, you missed Pine Hollow Auto Diagnostics !!…you think Perkins is smart…Ivan has a Mechanical Engineering and Electrical Engineering degree from Cornell (Ivy League) and a PhD in Materials Science from Penn State…now THAT’S smart !!
Great video as usual Mario! I've been hearing about super saturday alot. Can you elaborate? What is it? Where is it? Are people like me noob able to attend? Thank you! Thumbs up as always!
Thanks bud! Super Saturday is a world class training day in Pennsylvania this Saturday. Any one can attend. You may want to stay tuned tonight ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XwMLr2NYzNA.html I'd be stoked to meet you there bud!
Who else has the diagnostic tool you use? The two shops I have been to have very simple tools that say the code and misfire...nothing else. I feel it will not be properly fixed like you do in this video.
Unfortunately that's a problem with the industry. I can only say that you'll have to seek out the right shop. Are they certified? Ask to meet the technicians, see if they attend training... Etc
Hey Mario, I've got a 2010 silverado, it has 18 psi key on engine off, after initial prime, psi goes to 0 immediately. It takes a couple cranks to start the truck. And the truck runs at 18 psi. It sets several lean codes. And runs rough. I tested fpcm, pink ignition feed and it was 14.2v running, red with white tracer B+ was also 14.2 running. Then i tested the thick grey wire that is positive to fuel pump. Truck running and idling it was fluctuating between 11.4 and 11.9v. The pink ground to fuel pump was .20mv. Now here is where I'm confused, the battery voltage was 14.2 running. The power feed from fpcm to fuel pump was between 11.4 and 11.9v i know the pump is bad because the check valve is not holding pressure, key off pressure drops to 0 immediately. Was the grey wire power feed to fuel pump supposed to be battery voltage 14.2 or was the 11.4, 11.9 good? My understanding, and i may be wrong is the regulator is built into the pump and the pump is pulse width modulated to increase pump speed to build more pressure or less pressure depending on fuel rail pressure sensor and fuel demand. I called the pump on this truck but I'm questioning myself on the fpcm. Any help would be much appreciated. I'm very green at diagnostics and want an experienced opinion. Because if the 11.4 and 11.9 were supposed to be battery voltage then this truck will need a fpcm also. Thank you in advance for any help!
Oops i read that wrong. Your supply is good to the fpcm. You'd have to command the fpcm to 100 percent command and recheck. Most pwm fpcm won't supply full 100 percent command at idle. I don't think you have anything to worry about if your duty cycle matches your life data pid command percentage
How do you like the Micsig scope? Looking at the UScope but it’s only 1 channel might be enough for what we do at our shops. Also looking at the Snap-on Vantage ultra. The Pico looks really nice just sure if I’ll have space to have the PC stuff at my current shop
I loved the micsig, while it worked. Huge let down when it died. If at all possible, try to get four channels, bare minimum 2 channel in my opinion. Thanks for watching! Happy New Year!
should have pulled the brake booster hose to get the full rich o2 sensor to try and move. if it didnt which it wouldnt have. just unplug the o2 sensor look for around 450 mv on scanner
I know this is old but if you are still on this channel let me know I'll for sure subscribe to your channel I've been chasing po300 for to long so I'm going to check the o2 sensors and get bk on this channel to confirm the issue great video brother keep up the good work young man BON TEMPS
I don't know but I've changed all plugs & wires along with all coils new carb knock sensors & harness cleaned intake throughout the whole intake let it dried 3 days I've also got better intake manifold gaskets and never bothered the o2s still ran good except rough idling I've tested for vacuum leaks and none found even the intake wasn't leaking at all that's when it started to mind boggling me so I just drove it around like a little over 100 miles and it started to run smooth again I've checked the system out wit a ob2 tester to see if anymore codes popped up and none showed up it even said the evap is working properly again thank God because that was the next project to tackle but the codes all cleared up and still my daily driver at going on nearly 250000 miles on her yes indeed I've gotten a decent built 2004 4.8 engine
Just described brother and do you have knowledge about front suspension on a 2004 2wd. 4.8 ? If so what would be best a level kit or a lift kit I kinda want the truck higher so I can haul a camper trailer it's a weekender and the rear is kinda to low I'm going for rough country kits and on a monthly fixed income budget $ 600 doesn't go far at all I'm just having to put a little back to build up some funds because it's my only transportation
@@SuperMarioDiagnostics that's ok bruh I got a local company that does that they want to charge me $ 500 in labor to install a 4.5 inch rough country lift but dam $650 for the lift kit is understandable and dat $ 500 labor is ridiculous to me if I wasn't 55 years old I'd do it myself 😁
Mario great video, I still have a question about the P0300 misfires. I have a 2007 GMC YUKON XL 5.3. I'm having code P0300. When I take off my stabilitrac light comes on and shifts really hard. I have 250k miles. Besides taking it back to a shop should I change all 4 O2 sensors?? Thanks any advice will help about to find a cliff or bridge and drive this SUV off of it.
Thanks for your reply, guess I need to go buy a code reader that gives more info like which cylinder is misfiring. Most of those $60 to $90 readers that Auto Zone or Advance sell only read and allow codes to be erased. Curious which ones they sell allow you to read history or live data. It will come in handy on my kids vehicles. Any advice thanks again
@Angel Puente I sure did, After spend extra money and a bunch of hours online. A lot of comments said to check to see if the plugs are loose and for a bad coil wire going to the plugs. Well it was both on my SUV, I had the problem with the #1 plug. I change the plug and wire and it's fine now. Good luck hope it helps.
@Angel Puente You should be able to tell if one of them are loose by touching it. When plugs are in correctly they are thight. If it move at all then that's not good at all. And if you do find one loose change it don't just tighten it back down it most likely fouled out.
😂 that's it? Come on man! I'm not THAT lazy 😆 the time i took to move the clamp is still less than the time it takes to open my box, open the power probe box, unwind it, hook it up and use it. 😆😆😆😆
@@SuperMarioDiagnostics Yes of course I liked it you didn't an awesome job explaining everything...I'm trying to learn, use my Autel and track a misfire on my 04 Avalanche. Found I have a fuel leak down after initial prime, but fine running. New fuel pump 2.5 yrs ago. But don't think that's my issue. Swapped injectors, no difference. Plugs and wires seem good, low resistance, swapped coils no difference. Chasing down every trail so far and ended up here. So gonna try testing the O2 since I found 2 rubbing on the edge of the sheet metal of body under there. But it seems not into the actual wires though.
I am curious, and I know this is an easy question. But do you always test with a grounded test light on the heater circuit to find the 12v power then you know the other one much be the switched ground and can apply 12v through testlight to test? Otherwise if you go in with testlight hooked up to 12v do you risk shorting something out?
No it won't short, the pcm would give a code for a short if there was one, and likely shut the circuit off until you clear the code. There's no risk as long as you know which wire you're probing
@@SuperMarioDiagnostics awesome thanks. Basically look for the two black wires on a 4 wire o2 sensor and you know those are probably heater circuit? Or just look up wiring diagram for each car is prob safest
So I have code PO 200 and my truck started slipping on gear 3 and overdrive. I can't go over 55. And can't go up hills. What can I do to get back home to Florida? Also hope everything is ok there. A Building collapsed this morning in Miami. So sad
