Thank you for teaching people how to use the code reader

Hi please add more videos of check engine light

Super super useful tool can you explain it a little bit more about what the voltage should read on the oxygen sensor going to check for vacuum leaks

Thanks for your video. You have shown a good basic overview of the scan tool. However, as an automotive technician of 34 years, just owning a scan tool, does not provide all the information you need unless you know what the data means, what is correct data and what is incorrect. The following information may be helpful. If you are to diagnose problems correctly in this particular case, other things that should be taken into account would be both short term fuel trim (STFT), long term fuel trim (LTFT), readings of the air mass meter, coolant temperature and other live data. At 5.30, the LTFT & STFT are in negative, which indicates that the fuel trims are being lowered due to a rich mixture. If nothing else is done apart from the O2 sensors being replaced, the rich mixture has not been diagnosed and in the future, the O2 sensors may need to be replaced again, due to the actual cause not being repaired. The scan tool has simply thrown up a code due to the voltage readings being out of parameters. Honest technicians are interested in diagnosing the fault, not just throwing parts at a vehicle. It might be worth asking "Why did the O2 sensors fail? Why was the mixture excessively rich? Was it just due to old age or incorrect fuel, coolant in the exhaust system due to a blown head gasket, leaky fuel injectors, or many other reasons that would cause those codes to be shown?" Thanks again for your overview of the scan tool. I am not trying to give you grief, just point out some other areas to be considered. I hope that the above information has been useful. I always enjoy your videos. Keep up with the great work.

No kidding about the ripoff. When my check engine light kept coming on, less than a year after I bought the car, I took it to the dealer so they could pull the error codes and see what it was. (I suspect it was just that my gas cap wasn't sealing tight enough, causing the wrong pressure inside the tank and thus the check engine light, which I've seen happen on other vehicles.) They wanted to charge me $90 (!!!) just to plug in their code reader and find out what the problem was. I basically said screw that, and took it up to Autozone where they tested it for free.

Make sure you get a code reader that can display live data it’s really useful to see how the sensors are working why’ll operating the vehicle

Excellent n excellent video. thanks *****

Please tell me what kind of tester do I need for my 2007 Honda accord?

Another FANTASTIC thumbs up video.

Very informative video !

Thank you great video

Actually the O2 sensor reacts to heat if there's less fuel going through the exhaust it heats up more and if there's more fuel going through there or it's cooler so actually reacts to heat at 600 Degrees

Good video thanks for sharing

Excellent video ....

Good thank you

I have the cheaper version of that centech (harbor freight) scanner but I actually picked up a bluetooth OBD2 reader that syncs with your phone. They are dirt cheap now. I have an evap error on my car that comes up every few months so I just plug in my reader look at the codes and make sure its the evap error and then reset it. You can also use this reader to get live readouts of things such as intake temp, oil temp/pressure, RPM's, speed, etc... But the problem with leaving this thing plugged in all the time is the OBD2 port (at least on my car) is always hot so when they reader is plugged in its always drawing power and always searching for a connection point so it drains my battery.

Hi! what is the name of that tool or tester ? thanks, and what other car model cauld it work?

Gimick is he wants you to buy the scanner he is using. Slick

Hello, my Car is chevrolet optra, it's showing check yellow light sometimes , sometimes it's not showing , especially when we going to highway long drive it's indicating but in the city limit its not indicating, in high way also not all the time it's showing, may I know what could be the reason behind it?

I have a USB OBDII reader that can read and describe the codes, and can do a live report with a printable text report. Only requires the appropriate software. Most cars now and days can also display the codes on the dash, but you would need to look up the code. Good video!

Holy crap, you have four O sensors? Do you know if the electrical plug wired to car is easily available? The Idiots broke it the first time the sensor was replaced, they never told me nor did they fixed it!

Nice hands very smooth when you open the box and see the name and see the meter still in the strap give us the details more details the better details

Here's my question, my cars approaching the 100,000 miles mark, will check engine light come on to remind me that I need to service all things mention in the owner's manual?

Great hands great handwork I like two hands did you get your nails done where'd you get your nails done at your nails look really nice man

Thanks for sharing the dealership wants to charge just to diagnose the car for $150.00 are they crazy? Then I will still have to pay and get my car fixed if they find something. omg...

Good ol harbour freight!

There is different brand of code Reader on that Amazon link and not Cen-tech,thanks!

Hi! I got a tune up at an auto repair shop and now the check engine light is one. What did the mechanic do to my car? He is trying get to get money out of me.

1993 ford f150 check engine light has been on for at least 6 years..still running perfect.

Hi there! My engine light pop up yesterday. It was scary, I was in need of driving by night in poor roads. I have a Ford Fiesta Zetec. I drove back home the soon I could, turn off the car and restart it. No light. Just before this happen the car was on the drive for several days cause a snowfall. Could be the reason? I need to see this video bit by bit, nice. Cheers!

How much did that scan tool cost.

I love people who think a code/data reader will tell them what is wrong with a vehicle. So many times I have had someone say they replaced some part "the reader said was bad" but the vehicle is not fixed. Especially for EVAP and O2 codes. I laugh when they lose their face when they learn they will have to pay diag time to find out what it's really doing it plus the repair cost of labor and parts to correct the issue. Sorry Charlie, I don't work for free. Funny how they'll throw their money down a rabbit hole to not fix their vehicle but say the mechanic is a rip-off since he/she wants to charge diag time. Great example: Just this week a 2010 Honda Passport comes in with CEL on. Check codes to find P0303 (cylinder 3 misfire). Monitored the misfires and cylinder 3 was clocking misfires. Found the number 3 coil to be split. Quoted the coil and all spark plugs (the old plugs are very worn and was likely the cause of the coil burning up). Customer has a fit. Said he had just replaced the coil and spark plug and it didn't fix it. He said I didn't know what I was doing. I took a closer look and found he had replaced the coil for cylinder 2 not cylinder 3. That year of the Passport has two V6 engines with different cylinder numbering and of course he picked the wrong engine. I guess he's too smart to look at the engine stickers to see what engine he has. Some people shouldn't be trying to fix their cars. I was going to be nice and wave the diag time since it only took about 10 minutes to figure it out and just charge for the coil and spark plugs. After he showed his arse and talked so much crap, he declined the work but asked me which is the 3 cylinder. I told him he should look it up himself since I don't know what I'm doing. I took the hour of diag and walked away. This is mean of me but I hope he doesn't fix it right away and his catalytic converter gets plugged up from the un-burnt gas going out his exhaust. That would be like poetic justice. Too many people want to demonize the mechanic because they don't know what they're doing or they have had their jack-legged buddies work on their vehicle and end up spending more money to actually get the repairs done right.

Learn your lessons, a simple repair issue could cost you a fortune if taken to a repair shop. I have experienced these ripoff criminals who tried to screw off every last dime in my pocket.

Good day, my mitsubishi mirage 2013 hatchback, the check engine light is always off..i do not know what's the problem of my car why check engine is always off..i hope you will help me with problem of my car..thanks

I just removed the battery cables, cleaned with baking soda and wire brush and the check engine light is off now. I wonder if just removing the neg cable did the trick tho' I'll never know, anyway, all is good. Update, when I turned it off and started again, the check engine light came on again and stayed on - darn!

Can you take the cap off that O2 sensor kind of thing and you didn't show us taking it out of the box we need to see the box and we need to see you taking it out of the box please I'm a nun boxer I need unbox therapy

super easy?

Hi Doug do you have an email, Need your help please.

GO TO AUTO ZONE OR ANY AUTO PARTS STORES, THEY CAN TESTS FOR FREE

The damn dealership demands a must code read and charges $80 for it, even if you tell them there is no engine light lit or if you already read and gave them the codes you saw...

If the light flashing key