Compression Test WITHOUT a COMPRESSION GAUGE using Active Scan Tool: AUTEL Scanner MP808TS

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Күн бұрын

I show how to do a compression test without a compression gauge using just an active scan tool; the Autel scanner, Autel MP808TS. This is demonstrated on Honda Accords 2013 - 2017 (9th gen Accord). If you are having symptoms of low compression and are looking for a compression test without special tools other than a scanner, or how to check engine compression with a scanner or how to check compression on your engine with a scanner, you will find this video helpful. No other tools are used; no oscilloscope, amp meter etc. To check cylinder compression with a scan tool, a competent scanner that supports active tests is necessary. A regular compression test requires the use of a good compression gauge as well as disabling fuel injectors, removal of spark plugs and ignition coils.
Testing engine compression with a scanner is quick and easy with scan tools such as the Autel MaxiPRO MP808, MP808TS, or other Autel bidirectional scanners. This test will work on recent Honda as well as other cars. You may need to verify if this works as demonstrated on your car.
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Timestamps:
0:00 - Intro
0:39 - Compression test and signs of low compression
1:02 - Symptoms of low compression
1: 29 - A note on coverage
1:48 - Doing compression test without a compression gauge
4:26 - Interpretation of results
5:26 - Resetting ECM/PCM
#autel #autelscanner #obd2scanner #scantool #carscanner #diymechanic
Credit:
Piston stroke animation at 0:43 - "Animated scheme of a four stroke internal combustion engine, Otto principle" (en.wikipedia.org/wiki/File:4S..., By Zephyris (commons.wikimedia.org/wiki/Us...) Licensed under CC BY-SA 3.0 (creativecommons.org/licenses/...)

Пікірлер: 97

@rajeshchetty5519 Жыл бұрын

This guy would make for an excellent lecturer for mechanic school, his explanations are always very comprehensive, filled with knowledge and easy to understand whilst in no way dumbing it down. Keep up with the videos, you do great work brother

@DIYAutoworksNG Жыл бұрын

Thanks! Lol at mechanic school. That would be great

@TAShannon1 10 ай бұрын

Thank you so much sir! Fantastic video and very impressed with the capabilities of this scanner. Just ordered the MP808BT Pro. You did a great job on the video, the perfect amount of conciseness and perfect amount of information. Thanks from Houston Tx

@DIYAutoworksNG 10 ай бұрын

Thanks a million!

@timk.58 Жыл бұрын

You can probably thank MB Xentry for this technology I remember this feature in 07-08. As usual they are way ahead of most manufacturers in (over) engineering. Good Video. I had no idea Autel would do this. Wonder if it does just Japanese cars or ?

@DIYAutoworksNG Жыл бұрын

Thanks for the compliment. Yea, MB, BMW etc the overengineers. Lol. I can't say if it's only for Japanese cars. I think I've seen this function on a Ford, but can't recall. Autel's coverage tool is here if you want to check other cars autel.com/vehicle-coverage/coverage2

@okparasamson7984 2 жыл бұрын

Nice video

@DIYAutoworksNG 2 жыл бұрын

Thanks!

@henryserrano6510 Жыл бұрын

I do that method but sometimes with a charger connected to the battery, just to ensure the starter is receiving solid current, just in case battery not good and starter may start to rotate slower.

@DIYAutoworksNG Жыл бұрын

Yea. To test compression, battery should be well charged!

@redwillsdiychargedupvideo1486 2 жыл бұрын

My goodness brother thank you for such valid information I have the auto maxi's elite I will be doing this test this week I have cylinder misfire 6 8 1 and 4, With highest counts on 6 & 8

@DIYAutoworksNG 2 жыл бұрын

You're welcome! Let us know how it goes.

@ttamn92 2 жыл бұрын

This is definitely more of an advanced or refined way to do it but this is not a new thing when I was a young subaru tech at one of the training courses (back in the 90's) we were shown how to do a quick test with the oscilloscope and from what we could see there we knew 100% if we needed to do an actual compression test...and if you know anything about subaru engines any time you need to remove the spark plugs it's not real fun..not "hard" but you damn sure didnt want to do it and realize you didnt need to...was kinda cool to see the voltage drop test on the screen and right there you could see for example 3 voltage peaks that match and one that didnt ... less compression =less effort required of the starter=less amperage pulled from the battery ... Anyway just though I I'd leave that here for those that didnt know about it or maybe havent stepped up to a newer or more advanced scan tool or whatever... scopes are really cheap these days lol

@DIYAutoworksNG 2 жыл бұрын

Nice comment. Haven't done or used the scoping method before! Good to know. Subaru and boxer engines😀. Is it boxer engines in general that have their spark plugs difficult to remove?

@ttamn92 2 жыл бұрын

@@DIYAutoworksNG well the duel cam engines can be a pain just because you don't have a lot of room between the valve cover and the subframe..you kinda have to remove to coil but one at a time put the socket in then the extension (or some add a wobble) then you have just enough room to break the plug loose and get a couple turns and then u better hope you can unscrew it the rest by hand because (until a few years ago when snap-on came out with that super thin head 3/8 ratchet ) you run out of room and have to pull the ratchet out and loosen by hand then pull the extension out then socket and the repeat lmao its not too bad after you get the hang of it

@DIYAutoworksNG 2 жыл бұрын

Sounds like a pain for such a basic task!

@sagiriliyasuadamu3341 2 жыл бұрын

Good video, but this feature is only available from Accord 9th generation and is not available for all makes and models. However can work on older models of ford.

@DIYAutoworksNG 2 жыл бұрын

Thanks for the compliment! I'll want to believe that it would be available for other recent models of Honda of similar years: Pilot, Oddysey CRV etc since its a feature of the HDS. I'll be on the lookout for checking this on other cars...

@fatimaahmex8469 2 жыл бұрын

Hello, you have to disconnect all cables from the injectors or the device will do everything automatically

@DIYAutoworksNG 2 жыл бұрын

Hello. No need to disconnect anything on this Honda. The device does the test automatically. Sweet.

@user-ve8kb7rr9o 4 ай бұрын

Will the mk808bt pro do the cylinder contribution test like in the video?

@DIYAutoworksNG 4 ай бұрын

Yes.

@davideyo6931 2 жыл бұрын

Good evening sir I changed my catalyst on 2014 Camry but my check engine light comes and goes off by itself Please where are you located ?

@DIYAutoworksNG 2 жыл бұрын

Hello. Sadly, I do not run a shop and have no commercial services. Are you able to scan the car? Happy to help virtually.

@seunfire 2 жыл бұрын

I would have to check this feature on my scantool currently using the IM608 autel

@DIYAutoworksNG 2 жыл бұрын

It should be available on the IM608.

@Khaled-if4xs 2 жыл бұрын

Can all car's compression be tested by mp‌ 808ts ? I have maxi ms906bt but compression can't be tested like this. Please tell me What scanner is best for compression test all car

@DIYAutoworksNG 2 жыл бұрын

Not all cars can be tested for compression like this. For now I have only verified it on the more recent Honda. What car did you want to test compression on with the MS906BT?

@Khaled-if4xs 2 жыл бұрын

@@DIYAutoworksNG Hyundai kia Toyota can be tested by mp 808ts

@DIYAutoworksNG 2 жыл бұрын

The Toyota compression test is not exactly like the one I described in the video. You will still need a compression gauge. I haven't used the MP808TS on a Kia or Hyundai and so can't say at this point.

@cristalak 2 жыл бұрын

I want to know if you have MS906ts /would it work in Africa /How different is ms906ts from MP808ts

@DIYAutoworksNG 2 жыл бұрын

Sometimes, different authorised distributors implement the region lock on some devices while do not. I would recommend you chat with the seller to verify if their tool is region-locked. The links I have in videos of the MP808TS are not region locked. The MS906TS and the MP808TS have virtually the same functions. The main difference is that MS906TS has improved hardware (processor, battery etc) and supports the use of 2 other accessories: oscilloscope and video camera. Note that these 2 accessories are bought separately. Also, the MS906TS comes with the full obd adapter kit for older vehicles. Hope this helps!

@cristalak 2 жыл бұрын

@@DIYAutoworksNG Thanks

@DIYAutoworksNG 2 жыл бұрын

You're welcome!

@jamesmichael8549 6 ай бұрын

Does this check Fuel Pressure ? Out from the box you don't have to registered or used internet or online to used all of it scanning function ?

@DIYAutoworksNG 6 ай бұрын

Can check fuel pressure in cars equipped with fuel pressure sensors usually CAN OBD protocols and up. Some cars have a active test for this. Maybe check Autel's coverage tool autel.com/vehicle-coverage/coverage2 Out of the box, tool must be registered (Internet access required) before first use.

@jamesmichael8549 6 ай бұрын

@@DIYAutoworksNG My Last question is Do you have to pay every Year or monthly to keep all the Features on to this OBD device ? Now if you don't pay every yearly or monthly can you still used it to scan for everything ?

@DIYAutoworksNG 6 ай бұрын

You will keep functions even if you don't do the annual subscription. There a few minor exceptions for certain cars that require online access. I covered this in a video.

@wildsnake6894 9 ай бұрын

How many vehicles does this test work on? And can you still preform it after your subscription has expired? Thank you!

@DIYAutoworksNG 9 ай бұрын

Not sure of the number of vehicles, but it sure works on my Honda without a subscription. If available, it won't work on FCA cars post 2018 if there's no subscription. This will be same for other scanners, not just Autel.

@wildsnake6894 9 ай бұрын

@DIYAutoworksNG ok thanks I'm looking for a tool specifically for this function that can do the widest range of vehicles in the 4 to $500 dollar range..so far I've seen the lauch 919e / xtool d7/ and this autel would you recommend any for the compression test feature? Thank you just subribed as well

@clublength724 2 жыл бұрын

Can Autel MaxiCom 808bt do it too?

@DIYAutoworksNG 2 жыл бұрын

Since the MK808BT is not a bidirectional scan tool, it won't be able to do this.

@m4rvinmartian Жыл бұрын

Would this work on a 2000 engine computer?

@DIYAutoworksNG Жыл бұрын

If its a US car, yes, since OBDII was introduced in 1996.

@FASTECAUTO 21 күн бұрын

Boss are you in nigeria?

@DIYAutoworksNG 20 күн бұрын

Yep, but no commercial services though

@dannyshi7136 11 ай бұрын

Will it work for Toyota Prius 2012?

@DIYAutoworksNG 11 ай бұрын

I'm not certain.

@24BLUEELMO 7 ай бұрын

Hello. Does this function work on autel mk808z bt ?

@DIYAutoworksNG 7 ай бұрын

Yes.

@24BLUEELMO 7 ай бұрын

@@DIYAutoworksNG thank you !

@destronationtroll6063 2 жыл бұрын

Hello, MP808TS works with old cars? Mean 20-pin BMW E46 ABS and other?

@destronationtroll6063 2 жыл бұрын

I want to buy one and i don't know it will be work with adapters

@DIYAutoworksNG 2 жыл бұрын

From my research on Autel's coverage tool, the 3 series E46 is not well supported. Also, the MP808TS does not come with adapters like the 20 pin connector.

@destronationtroll6063 2 жыл бұрын

@@DIYAutoworksNG And E46 after 2000 with obd2 too? What can I choose DS808, MP808TS?

@DIYAutoworksNG 2 жыл бұрын

The MP808K or DS808 (the ones with the adaptor kit) have better support for the E46.

@destronationtroll6063 2 жыл бұрын

@@DIYAutoworksNG whats the difference about MP808TS and MP808? I know TS is on bluetooth but what else?

@aivanamiramir2857 Жыл бұрын

mazda

@DIYAutoworksNG Жыл бұрын

???

@MyScotty7 2 жыл бұрын

Mercedes turns the car over itself on this test.

@DIYAutoworksNG 2 жыл бұрын

Nice.

@Lowdown13blues 2 жыл бұрын

With the Autel MP808ts ($950) ,which does just a little more than this one, after 1 year you need to spend $600 EVERY YEAR for updates. Not exactly a DIYer tool.

@DIYAutoworksNG 2 жыл бұрын

Good comment. Seems you're posting this under the wrong video since it's the MP808TS I used here. Are you referring to the XTOOL D7 I reviewed recently? I agree that the MP808TS is definitely not for everyone, depends on how deep you are into DIY. For me, the MP808TS has been a great investment which I don't regret despite the fact that I'm a DIYer... Well, fair to say I'm neck-deep 😂. It just makes all the sense being wireless, with more advanced coding/programing options plus being able to activate TPMS sensors. I hate wanting to do something only to discover I need to buy e.g. a separate TPMS tool in other to program or relearn TPMS sensors. On updates, I am yet to update mine since it expired and it still works great. I think I'll update during the sale this year😁

@Lowdown13blues 2 жыл бұрын

@@DIYAutoworksNG Hi ! No, it was about this same device. After watching this video I ended up buying an Xtool D8 which doesn’t programs TPMS but there’s a BT version that does. I rather have a separate device since (it’s just me) I don’t want to rely on batteries since I’m a DIYer so I won’t be using it that often. Right after this I’ll be watching your Xtool D7 vid. Thank you

@DIYAutoworksNG 2 жыл бұрын

Smart choice! We should always go with what fits our diagnoses needs when it comes to scanners.

@bpoirier2002 2 жыл бұрын

I’m wondering what the TS version gets you over the regular? I know there is a TPMS option in the service menu on the regular MP808, but what TPMS features does the TS version have? And do you know what the difference between the older DS, MX and MK 808 versions is in comparison to MP? I’m looking for something with good TPMS capability and ECU coding and programming capability

@DIYAutoworksNG 2 жыл бұрын

The Autel tools that end with TS have a TPMS RFID reader built into the tool. This is able to activate TPMS sensors directly by placing them in proximity to the sensor. This must be done if you want to relearn or program sensors. The regular MP808 can read TPMS codes but it can't activate, relearn and program sensors. E.g the MP808K cannot be used for what I did in this video kzfaq.info/get/bejne/oNVxq9anmKnDhKs.html

@bearchow1929 11 ай бұрын

Explaining compression to an AUTEL owner is a waste of time. If an owner of an AUTEL doesn't understand compression then their already in over their head.

@DIYAutoworksNG 11 ай бұрын

It could be an aspiring owner😅. That said, I get your point, however, they are those that get 'big tools' hoping to 'grow into' them.

@akhil6306 Жыл бұрын

Which is better xtool D8 or autel mp808TS?

@DIYAutoworksNG Жыл бұрын

They are roughly on the same level. In some ways, it's like asking between BMW and Mercedes which is better. It comes down to preference and a few other things. From my experience with the D7, I'd say the Autel is a tad more refined plus it has full access to the TPMS module. However, the D8 is comparatively cheaper including the cost of updates. Also depending on the cars you want to get it for, you may find a thing or two that either one of these devices has an edge over.