2005 Silverado Misfire p0300

[kirkabrahamson]

The master at work. You really make this look waaayy too easy.
My biggest take away from your videos is to trust my test results. I second guess myself way too often. Especially when the vehicle has already been to a few mechanics who haven't resolved the customer complaint.

[jasonc.]

And another diag just sitting in the car without having to pop open the hood. Excellent Maestro. That must be a great feeling

[JOHNPHUFNAGEL]

Fuel trims are a awesome tool for diag O2 problems. I did a old school ranger last week that has been running like shit for 3 years right after a engine swap was done. 5 garages couldn't figure the problem out and lots of wasted money was spent. 5 min is all it took me, soon as I seen the fuel trims and the O2 sensors readings I knew what the problem was. They had the O2 sensors connected wrong. Great Video Keith

[SmittySmithsonite]

I was sitting there trying to think of what would cause just one bank to misfire ... and an o2 sensor wasn't even on my radar! So many things to keep in the brain on modern vehicles, I forget the basics! Thanks for rattling the brain cells around a bit, Keith. 😁👍🍻

[LongIslandsHardcoreDetectorist]

Nice job buddy, you work your magic so nicely. I did auto motive work for 13 years up until 4 years ago I got hired into the rail road. I wish I could have worked with someone as nice and as teachable as you. Your a great man and I appreciate you & your video. Take care buddy!

[kylevanzee]

I just had the exact same issue! Got me to the right place, in my case the pickup ran worse with the new 02 sensor installed! The cat was plugged on bank 1

[billyyoder]

Thank you Keith. Good job. As always, I appreciate your videos. Have a blessed and safe night.

[JuanOrtiz-mobe]

I bet most of us were thinking, vacuum leak at intake manifold, but professor Defazio proof me wrong again.
Thank you Keith.

[erichagler]

Quick and dirty straight to the problem .... great tip sir

[mbarry]

I don't even wait to watch your videos, I just click the thumbs up as soon as I get here. You da Man, Keith!

[billt]

Thanks for the time you take to make these interesting videos.

[VoltageDropDiagnostics]

My man! Thanks for adding value to the industry 😉

[mikechiodetti]

Quick misfire diagnostics! I like it! Good Job!

[power]

THIS IS A GREAT VIDEO KEITH I KNOW YOU HAVE A GOOD EYE FOR THIS . I WOULD LOVE TO SEE WHAT ACTUALLY HAPPENS WHEN THAT 02 SENSOR GOES IN . THAT BOSCH ADS 625 HAS SO MUCH INFORMATION THIS TOOL IS PUNCHING WAY ABOVE THE AVERAGE TECH'S WEIGHT CLASS IT'S LIKE HAVING A GUARANTEED FIX . IT'S NICE TO HAVE TWO TO THREE TOOLS IN ONE RIGHT THERE WITH YOU AT ONCE . THANK YOU SIR !

[High_Tech_Mountain]

Taking a trip down memory lane!!! As always, great video and diag!

[PaulR]

Keith,
Great video and diagnosis. Thank you!
God bless
Paul

[rtchrg]

Great vid Keith - good reminder to evaluate O2s per bank if whole bank is misfiring!

[codysautodiagnosticsprogra]

Great work Keith. Always enjoy your videos and the way you educate

[yanierolivera]

Good video. I must say that here in Vancouver British Columbia, if you are a shop owner and you don’t have a Technician that can figure out something like that, you may as well close your business.

[brianmason]

Always awesome watching a master at work!