Keith, you know you're a great tech when you can walk into a shop and use their tools and equipment to diagnose a car. Just proves knowledge is power and no matter how big the toolbox. It doesn't make the tech. Most important tool is the mind.

Wow I can't believe I caught that right off the bat. I'm so proud of myself. Not trying to toot my own horn but I've came a long way. KZfaq guys and girls like you expanded my diagnosis tenfold. Thanks for doing these short videos. Some go over my head but I learn more with each one. To be honest a lot of my diagnostic skill comes from scannerdanner,you and a couple basic electric channels (diagnosdan is one to). You guys push me out side my limits. Truly thanks I wouldn't be as good as I am without your guys help

For anyone interested in how to find out exactly what MAF reading should be at certain RPM. Here is a formula to figure it out: (liter size of engine X RPM)/reference RPM= Theoretic g/sec So for this engine I took the readings at minute 3:15 (2.5x762)/600= 3.175 this means at 762 RPM the MAF reading should be right at 3.175 g/sec To check the accuracy (Actual g/sec X Accuracy baseline)/ Theoretic g/sec= % of Accuracy (6.21 X 100)/ 3.175=195.59 OR 95.59% off at idle Thanks Keith for putting out great videos!

The Autel isn’t slow in general. It depends on what car line you’re working on. Some of them are fast some are a little slower. Ford for example takes forever but my launch seems to take longer on Ford as well.

Thanks for your time Keith. Glad I purchased the Launch. Keep us posted if it turns in to something else. Say hi to the man Rocco. ❤️️

Thank you Keith. Good job. Sorry you had to suffer through that buffer. Glad I bought the Launch Diagun IV. Have a good night. Hope you enjoyed your parade.

Im puzzled! it is almost impossible that this an Autel elite, I have the autel pro & the speed of my Autel is like night & day compared to what I'm seeing in this video. Instructions is Key when doing a idle/air relearn on Nissan, Engine temp must be between 70-90 celcius, PNP switch off (IN PARK) all electrical loads off & Idle below 1300rpm. If the rpm is to high unplug a coil to bring it down, once process is complete the idle comes down a bit plug the coil back in & repeat the process with all coils in if desired idle speed has not been met. Autel is my goto tool for programming Nissan idle/air, the first time had me stumped but once I fully read & understood the instructions it became a simple process. All scan tools are slower with older Nissan's! I own All of the Big 3 scan tools Snapon, Autel & Launch. Snap on is fastest but lacks a ton of features, Autel & Launch run at about the same speed with older Nissan's. Your videos are very informative, great work!.

Great explanation! You really caught that autel milking the clock 🤣

Mass Air Flow sensors. If not being over achievers like this one, they're causing intermittent stalling! They're a great idea.......until they fail! Great Informative Video! Thank You!

I just ordered a launch x431 pro the other day. I hope when it comes in it works faster than that, or I'm not disappointed or just wasted my money. Thanks for the videos sir.

Nice job. Friend. Completely understand the most important PID. 1 gram per second per litre. 😉😉😉😉😉😉😉

This autel fits you well. Great video

Its normal for a Nissan to take more than 5 minutes for Idle air relearn Thank you for sharing the valuable knowledge

To be fair,each aftermarket scantool might be faster or slower depending on the make you’re using it on. Do a video in parallel on the same make and model : use your IPhone timer and time from the moment you hook it onto a car,communicate,automatic identification and complete module scan-between Autel and Launch. Just a thought... I know an aftermarket scantool,it costs 15 thousand dollars and it starts with the last letter of the alphabet : it won’t even communicate with a Nissan. 😁 Nice video Keith! 👍

Bro, you are beast with the knowledge. I have an autel for years and didn't even know half the knowledge you shared with us. Thanks. looking forward for more.

I have the same model, i've noticed that it is slower on other car lines. I use gm the most and its pretty fast. you can turn off that little spot light feature. Great video! fuel trim diag can be tricky sometimes!

Wow that’s crazy slow! I’m on my second autel and neither one is slow like that. I have the maxisys mini and the ms906. Thanks for the video!

Debating between Launch and Autel. Nice to see a video like this to help weigh pros and cons....

That's why it good to have multiple platforms of different scan tools

Thank you for this video. I have the same issue on my 2000 maxima. I did the naughty thing of guessing that it was a MAF issue based on an observed high MAF reading and large negative fuel trim - but I supposed it could have been a leaky injector or something else.

Gotta love when the Autel auto ID's a VIN number, displays the correct VIN and the next screen it makes you select the model year of the car

I believe idle air vol relearn is in hot function on the autel and also in maintenance on C3+ as a shortcut. 😊

On the Autel if you hit history at the top of the main menu you can jump right back into the engine diagnostics with one click. I hate the idle learn on some of those nissans and infinity’s especially when you have to start unplugging fuel injectors to get it to go.

Friendly tip. On Nissan and infinity cars Before performing a idle air volume do a self learning count first ..👍🏼

Yeah, check the updates, even if just purchased. Mine on Oceania works fine, even my old DS708 relearns within 15secs after all parameters met. Launch or snap on ok but found autoland faster idle learn

17 minutes...hold on Keith I gotta make some popcorn :D

Thank you for sharing Keith! Awesome videos

if it's like most computing devices once the battery hits a low limit, it goes into something similar to "limp mode" saving power and running at a snails pace

As always. great information man, thanks.

That thing was 4x faster than my Autel! I have the 906TS, not the Elite. Mine doesn't like Chryslers or Nissans - takes FOREVER to load all the data parameters on either one - and I mean FOREVER!! I don't have that strange "spotlight" thing that was hanging around on the right side of the screen there, that you were able to drag out of the way - no idea what that was. On domestics (except Chrysler) and other Jap brands, my Autel does pretty good. I do wish it had a STOP button, though - I get frustrated and just reboot the tool by holding in the power button until the screen goes black. Sometimes it will perform functions without letting you know ... and other times it will do nothing, also without letting you know. One of the quirks of paying $1,600 instead of $11,000 I figure ... Plus I haven't updated it in 2 years. Pretty steep bill for that. Only tool I've got, so gotta run with what I brung ... I always figured when a MAF fails, it will under-report. Good to know! Great vid - I appreciate it! 👍 👍

This is a great video. My elite is faster haha. The J box is faster than the wireless vci I just bought that Verus pro so I can wait to see the diff. With the Autel you can go to special functions from home screen it’s faster than going in through the diagnose side. Didn’t realize you had to relearn on an old car this is good info thanks Keith

A quick check I use is to disconnect the maf. If car runs after you know your on the right track. Also I've had maf codes and it was actually the map sensor wiring cut. Ecu was comparing both map and maf and decided one was wrong the maf but infact the map was the faulty signal. Just goes to show don't trust the codes and check yourself back probes the maf and it was spot on. So looked elsewhere and found map sensor harness was rubbed through partly on the radiator fan.

That 02 sensor went right back to working properly. Thanks!

The little access button he was moving around is nice to have on the cheaper versions of Autel scan tools. Especially since the hardware/software is from 2013 versions of android devices.

INTELLECTUAL New level Auto Thank you very much helpful information video Take care and have a great Evening INTELLECTUAL New level Auto From Nick Ayivor from London England UK 🇬🇧

Looks like this is an issue with all the maxisys line scanners. My maxisys Bt does this same thing when trying to idle relearn..Everytime!! I have to use the maxidas to get the job done.

I was thinking about getting one of these Autel but not anymore. Thanks for the video

Keith, Nissan does have a manual relearn procedure, it's on KZfaq if u look it up

I find that my MP808 is slow too but I don't remember it being that slow a year ago when I first used it,but if yours is slow then maybe I shouldn't be too concerned.

my car Reports negative ten long term fuel trim ONLY AT IDLE as I push gas pedal little bit like 1200 rpm or 1500 rpm the long term fuel trim comes to negative 3 or less immediately ! any one can tell me why it shows negative ten at idle only?

I've had a nissan x-trail that idled around 2000rpm after a throttleand MAF clean. It wouldn't do the relearn. Got the rpm down by loosening the air intake boot so less air was drawn through the MAF.

Nice video and explanation ive seen a dirty throttle body on those set a p0101 due to the computer expecting x air flow from the mass. At x throttle position clean the carbon out pcm is happy again keep up the great work

Hmmm Question ? Why is there a big red sledge(6:25) hammer by the car?

What launch scanner do you recommend?

My Autel 608TS is really slow as well. It’s especially slow on Subaru’s where it will scan every possible module even if it came out a decade after the car was built.

Lots of my special tests on my Autel wouldn’t work until I updated the Autel then everything worked

I say we go back to the good old days, when a Chrysler spark plug wire was all that was needed to fix a car!

Hey Keith! Hope all is well. 2011 Altima 2.5 Gas got a code P2423 HC adsorber Catalyst - B1 yesterday. I had an aftermarket downstream direct fit walker cat with fex pipe that was 2 years old. Advance swapped it out under 5 yr warranty. Did drive cycle and all IM readiness passed. Noticed before and after replacing cat positive short term Fuel Trim bounces between +3 and +10 and long term +5.5. I guess it’s still in an acceptable threshold since the ECM hasn’t tripped any codes. There is still a permanent code sword for the original code I mentioned at the beginning. I don’t have any known good data for this car. Do you think these fuel trims are normal? Thanks so much!

Did the computer trigger the CEL with the old maf? Thanks for sharing.

Where can I purchase that scan tool?

Nissan’s can be finicky with the Autel that’s for sure, especially with idle learns. Great video Keith!

Problem with the battery powered tools is the processors bump into a lower CPU power mode when the battery is low and to conserve Power. I started in the Automotive trade in the early/Mid 80s. Then switched to electronics in the early 90s. Then to computers... I like the price point of the Autel tools but not the oscilloscope function. I am currently looking for a tool as I still enjoy automotive as a hobby. Glad I didn't buy the tool the speed would drive me batty!

thanks again...fyi i think that guy needs a longer extension to remove the clamp on the MAF!

Thanks, as always, for the videos.

Hey Keith, I hope all is well with you and your family?! What is your opinion on the best overall scan tool if you could only have one? Thank you greatly for your time. Take care.

Hello Keith. Wanted to get your opinion on what scan tool to buy. Cant afford a snapon but what is your opinion when it comes to autel, launch, otc, autoenginuity. Appreciate it. thanks

Nice work. But it looks like you needs a new scanner to see what’s wrong with you scanner. 😂. Just kidding.👍

What was the big red sledge for? Looks like you got there just in time, Keith.

Hello can anyone help i have the same issue with Long fuel term always at -3.9 and the Short fuel term from -3.9 to -8 only please help also vibration btw its altima 2014

i wanna learn how to do diagnostics with a blank screen too.

thanks

is it normal when you rev the motor OBD shows vehicle go from CL to OL?

do you remember when you used to turn a screw in or out to adjust rpm you need a separate work shop to fix the autel what a shame it has not got a stop or back on it while you were doing the re learn

What's a good general g/s number for hyundais and Kia's?

Where did you learn cars programming? I want to start on this, but couldn't know where to start

quick on gms. thats about all. also has better ford missfire graph than some. hate that it switches back to lbs per sec. and then when you record data it will only show it in lbs even if it was recorded in g/s

Great job again

I have a ford taurus 2015 3.6l gdi ihave a negative fuel trims when i put on the gas pedal -28 when idle it was normal

i have the same system autel maxisys elite i do like it so what are your thoughts keith

I have the 906 bt and its slow with certain makes n models

Always interesting and informative. Thank you for sharing. Is it my imagination, or does KZfaq have an inordinate number of repairs for Nissan?

Did you try the banana in the tailpipe trick?

Perhaps a new slogan, "Aw hell, it's an Autel..." Glad I'm not the only one to notice Nissans are...Special. Every single one I've done diagnostics on has made me want to drink Drano.

I have the ms906p and it’s nowhere near as slow because it’s wired

This may be a fair question, if the maf sensor is reporting more air, how come the stft is negative? Shouldn't it be positive to compensate?

Disconnecting the injector to lower the engine speed. Wouldn't unplugging the coil have done the same thing? Glad I got the Diagun

love it

What launch do you have?

Did you find a stink bug in the Maf? Lol

@NewLevelAuto Keith, what version launch do you have or recommend, I thinking about replacing my Autel and have heard great things about the Launch line

Yeah I’ve got an autel and it’s soooo slow when I do a full scan.. takes forever man lol

Great video Keith that’s the ms906?

If you screwed on the air filter cover it would cut it down too

GREAT VIDEO AS USUAL KEITH , WOULD SHORE LIKE TO KNOW WHAT WANT DOWN WITH THAT IDEAL - RELEARN . THANKS

Great video. Is there a gram per seconds rule of thumb for the KIA's and Hyundia's?

Keith you can just go to *history* and select the car...

If battery is low the tool will do that run slow.

My ms906bt isnt that slow at all. Only when i do ford or mazda it takes forever just like ids takes forever to "gather network info"

Now the shop I had got an autel.... and it was't that exact model, but it was never THAT slow. It was pretty damn slow, but that's excessive, even for the Autels i've used.

Excellent video Keith. Guess ima hold off getting the autel.

how to know its L31

would hard wiring the Autel to the diag port make a difference ?????

Please help bro i have the short term fuel always minus 10 and more and the long term fuel 0.8 and sometimes going minus i change the MAS but it wasn’t the problem (. Nissan altima )

Maxisys Elite, especially slow on Fords

I allso have the only slow scantool from rest of them if i ask it from the sells man ;)

berry inturdresting

Where were you when this shop owner bought this scan tool?

just got a Autel MaxiPRO MP808TS hope it works out as well as yours sir not ha . great video not a good show for autel unit

Thanks

You can stop that re-learn without shutting the car off and causing a “force fail”