2012 Fiat 500 Misfire Diagnosis and Fix - P0202 P0302

Thank you all for tuning in to Super Mario Diagnostics!
Today we are diagnosing a misfire on a 2012 Fiat 500.
I hope you all enjoy, like, share, comment and subscribe!
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[@simonilett998]

I've learned a lot from the KZbin greats. I regularly watch Paul - SD, Eric O - SMA, Ivan - PHAD, Keith - New Level, Eric - Advanced Level, Mike - Wells Tech, OZ, Maic Salizar, Joe's AE, Bernie Thompson - ATS, etc etc, and you are definitely right up there with the best of them Mario.

[@htownblue11]

Another example of why a diagnostician is worth the money versus firing a parts cannon. You are absolutely correct about the level of knowledge you have to obtain Mario.

[@jeremyah78]

I have learned the exact same way, Mario! I am sooooo thankful that this content is out there! Those of us who are paying attention know exactly who you’re talking about who you say you’ve learned from, and now you are one of them… you have been for some time, brother! I would never make videos about it… it’s not my bag, so-to-speak, but because of you folks, round my parts, nestled in a town in Ontario Canada, we are the shop people bring it to when they want they’re vehicle troubleshooted! My sincere thank you! To you and the KZbin automotive gurus! ✌️

[@petar443]

Thanks so much for these free videos man. Sure it takes a lot of your time to make and edit them so i'm very greatful . I repair salvage cars for living. Everything i learned from youtube , specialized books, online forums, free articles in online magazines(motorage, bodyshopbusiness). And learning the basics of electrical and electronics was the hardest and most exhausting thing to learn. And i know mig sheet welding , frame machine repair and autobody measuring. But darn electrical stuff is so hard. My favourite channels are yours , Pine Hollow auto diagnostics , Scanner Danner, Automotive test solutions, and Maic Salazar. Important to mention - your channel and Pine Hollow Auto Diagnostics is the number one , at least for me. You two make videos very frequently, and the videos are the most educational. Scanner Danner still makes some great videos on his free channel, but the truth is he's concentrated on his paid channel. And ATS and Maic Salazar make only 1-2 videos a month. I'm also subscribed to a 15-20 more channels that do simple diagnostics. But they lean towards general mechanics and serious DIY , other than professional diagnosticians/technicians like you and Ivan. I DONT speak bad for them. Just trying to say that you and Ivan bring HIGH QUALITY in LARGE AMOUNT.Thanks 👍

[@codywichman213]

It all goes back to the fundamentals. It's a coil of wire. 12v ground side switched circuit. Goes back to my favorite diagram Scannerdanner would draw to simplify the diagnosis. 12v in to the injector and transistor is off...12v continues back to the pcm for circuit integrity testing. It was literally like a light bulb went off in my brain and all 12v coil type circuits made sense from that day on. He preaches fundamentals for a reason. Such an easy test one you have the fundamentals. I really enjoy watching your videos because I learned the same way through hours of scanner Danner premium videos, and his book. Keep up the good work! Thanks for all you do for the community.

[@34-yankee86]

Just a comment; I have a 2013 Fiat Abarth Turbo. Recently it started missing on 1 cyl. and I got a check engine light along with periods of the light flashing" (bad news when that happenns) Anyway, a friend of mine and I begiin the usual check for codes (didn't use some cheap Amazon OBD2 rig either, but got NO CODES! Begin checks by removing the plugs and found #3 looking very bad so we stuck the plug into the ignition module and grounded the plug base to the engine, it sparked very well. Installed new plugs, just in case, got the same fire on all 4 cyls but still missing. Checked injectors and found them working fine. Then my friend said, "check the compression" and sure as hell, #3 was 30 ;si on chranking and a little under 60psi on run. All the other cyl's were checking well over 100psi. Just a warning, check the compression! I have seen no KZbins where this is performed but then I haven't made a carrer of sifting through every posting either. BTW, the car will run fine if I kkeep the RPM's above about 2500,, at 4K it has some good accel and seems to run fairly well. Looks like valves and/or rings so big job ahead.

[@gtautomotive22]

LOL the intro was funny. I wouldn't think people would complain about such thing. Getting a free lesson and still complain. What this world has come down to. Good job Mario.

[@ThatDIYguy862]

idk why but these diag vids are always so satisfying to watch

[@gregjones8501]

I really appreciate these videos Mario! Especially trying to run my shop alone and keep up with all these different systems. I can afford the training but it’s hard for me to take the time off and travel most times so these videos help me tremendously due to the fact that I buy most of the tools I see you use and I learn to use them watching you, Scanner Danner and Ivan mostly. Thanksgiving for sparing some of your time to teach us and keep this industry going strong!

[@shaunblakemore7150]

I’ve learned so much from KZbin, great job 👍

[@arthurfricchione8119]

Mario the knowledge and troubleshooting procedures you share are extremely valuable. Yes I follow the others and take courses and sometimes the same courses again just to see stuff I missed the first time. Thanks for sharing and stay safe and well Artie 😊

[@robertmedina6875]

Yeah it’s crazy how much we have to learn as technicians!! Great video Mario!!!

[@YotaguyJosh]

Free knowledge! Thank you brother. South main auto shoutout. The good old days. Thanks again homie, really appreciate it.

[@wentzelnel7723]

Thank you Mario. You a Gem of a human.i can honestly say the big dogs you mentioned and highly skilled technicians like you really help us, whos willing to learn. Keep up the good work sir.

[@Gspot1012]

An honest thank you, your final words so true so valuable it has engulfed me and tears falling

[@TasosPapazoglou]

Thumbs up for the credits given at the end of the video. In my turn to give credits, I am becoming better watching all of you guys. Thank you. Greetings from Greece.

[@molenz1960]

Easy fix. I don't like running by-pass wires myself, although in situations like this it really is the only cost effective way of repair. I just like to know exactly what the issue is and fix it, instead of by-passing and wondering if something else is going to go wrong in that section of the loom.

[@rickcoleman8903]

I was just thinking today that I was missing some super Mario diagnostics and there you are!

[@stephenmoxley3004]

Nice work, Mario. Ironically enough, I'm watching a Scanner Danner video next. Keep up the great work.

[@alanw5879]

Appreciate another great video, youve got a very logical approach. I like that, just monitor the feed coming through the injector, even for the control side.. nice