Subaru VVT Learned Values Reset With Autel | ECM Saved!

[@PatrickAndrews-d4t]

Thank you thank you thank you. This is exactly what I needed to walk me through using the T8 Icon Diagnostics Scanner to clear these values and clear the forever reoccurring P0019 error code. I had already removed and cleaned all 4 vvt sensor on a 2018 Subaru Crosstrek and replaced all 4 camshaft position sensors and the crankshaft position sensor and couldn't get the error code to clear. Once I went through your process with the service fuse in place the sensors went from reading at 98 and 107 to reading 88 and 89. Error cleared and stayed cleared. Thanks man.

[@ThePracticalMechanic]

@@PatrickAndrews-d4t glad I could help. I had a forester last week with a sticking vvt actuator. Intake values were 86 and 96. Max was 88°. Replaced actuators, cleared values and they returned to 84, 85°.

[@Zelaphiel]

Managed to reset the values on a 2017 WRX after changing the sprocket, this is one of the best things I've found on youtube in my life, thanks man!!!

[@arkadiuszbryja2340]

Thank you!!! That video was very helpful 👏 👌 👍

[@ThePracticalMechanic]

You're welcome! Some vehicles are stubborn and and don’t reset the first time and some don’t reset with this method. Glad it worked for you.

[@martinsmith2948]

can you do this with a snap on scan tool?

[@ThePracticalMechanic]

@@martinsmith2948 no. Snapon does not have the “change test mode” button. Autel, launch, topdon, think tool all should work. Even the OEM scan tool isn’t capable of resetting these.

[@nuklhed6]

Thank you for posting this .Your a great teacher.

[@Albertpaul15]

The data I have it was 137 from bank 1 exhaust, and I used this method and it work. Thank u sir for this detail and guide us step by step. Bc the dealer telling me I have to change my ecm. But not anymore hopefully. Gonna test drive put some miles see if goes back

[@ThePracticalMechanic]

I tried informing the two Subaru dealers within an hour of me that there is an alternative to ecm replacement. The service managers wouldn’t let explain the method.

[@alpha2daquest885]

What model and year is your vehicle and what scanner did you use? I couldn't get mine into Test mode because it didn't have the option. Mine is 2011 Forester w/FB25. Im glad you got yours fixed.

[@mikejr550]

Great video. Thanks for sharing!

[@butchboucher3593]

Worked on a 2019 cross trek with p0017 after replacing all the timing components. Used the launch tool.OTC Encore would not work.

[@talonaj24]

Thanks !!!

[@blackbirdz714]

What coding tools could be used to reset the values on an early model brz/frs for clearing a p0018. I have an autel maxis elite 2 that I used at my shop and access to ecutek tuning software.

[@ThePracticalMechanic]

Unfortunately, the BRZ/FRS requires specialized tools to read the emulated eeprom from the ECM and then manually, edit the values before writing it back.

[@Gilligan.Garage]

I am having code p0011 on my 2018 crosstrek, after checking timing and replacing my intake sprocket would i need to do this method of reset for that code or would a normal clear codes do the trick?

[@ivanechokheli]

In the second KZbin video I asked you where this fuse is located on my 2018 Subaru Crosstrek. - This is number 39, someone will need it. I'm wondering if it's possible to delete vvt data using ssm4 if you can give me a little hint.

[@ThePracticalMechanic]

SSM4 does not have the feature. That is why dealer techs cannot perform a reset unless they own an aftermarket tool. I’ve had many dealer techs refuse to do this reset as well.

[@robertbruneau112]

As stated 2011 Forester does not provide the learned values, and does not have the fuse location but does have the green check connector. Autel ms906bt does have dealer mode. would this work to reset values? looking for help with this p0018

[@ThePracticalMechanic]

A few have mentioned they didn’t have the function available for check mode. If your scan tool has it available on that year I would try the procedure and see if it clears it. Did you have a mechanical issue before? Timing chain or avcs solenoid issue?

[@robertbruneau112]

We put a low mileage used engine in it (40k) and we have this ghost p0018. The car has the green check connector, and my Autel ms906bt does not show learned values in the data. Can you do a video on reset for these models? can I email you direct or even better call? thanks@@ThePracticalMechanic

[@MrSince2009]

So ex values still over hundred does that mean you still have timing issues?

[@TheDarkfuneral07]

I have P000B on my STI, I can’t figure out what it is

[@user-tr1nw3yb3m]

I have a 2014 crosstrek. Every autel machine I try doesn't have test mode change function. Autel says its to old and my ecm doesn't support this function. Has anyone been successful on a 2014 or older? The videos all seem be a few years newer.

[@asewamu]

I'm in the same boat currently, tried launch and snapon for the hell of it and neither have the function.

[@user-tr1nw3yb3m]

@asewamu I tried quite a few autels and a launch. I'm told by autel the tool i used has the function but my car is to old to support it....took it to subaru and touched my toes..at least it's fixed

[@asewamu]

@@user-tr1nw3yb3m im willing to bet this year needs the reset via Eeprom which is locked down information only by a webinar. Gathering info now for that.

[@andrewweiss9700]

I need to know how to do this with the autel on a 2017 BRZ, I hear it also can be done, I replaced the bank 2 intake sprocket. Letting RTV set up, Getting ready to start. Any help thanks!

[@ThePracticalMechanic]

Brz cannot be done with scantool as far as I know. I do t have access to one for testing so I cannot confirm. I think the brz/FRS need to have the eeprom manually edited.

[@mithunmadushan7050]

@@ThePracticalMechanic is it working for 2016 wrx fa20dit

[@ianstewart7899]

can this be done with a snap on scanner?

[@ThePracticalMechanic]

Snapon scan tools do not have the function as far as I know.

[@Fostehen]

When getting this done will i need to unmarry my Cobb AP and then remarry and load my tune or is all that unnecessary?

[@ThePracticalMechanic]

This method doesn’t change the flash programming so you should be fine. I have never run into one with the AP installed so I cannot confirm.

[@randowho]

Can confirm this does work on cars that have been flashed with a Cobb AP and a tune. I reset my ‘21 WRX this way using a Launch x431 tool (Thinkdiag2 also appears to have the ability as well for cheaper based on other comments)

[@brianmoore5367]

I have the same MS906TS scan tool with the Subaru v8.1 update, but Test Mode Change does not appear in the menu after Special Functions- only Dealer Inspection Mode. Is there a step I’m missing? I have tried reading the ECM with the inspection fuse both installed and removed.

[@ThePracticalMechanic]

What year and model is your car? Someone else was missing the function on a 2011 forester. I don’t have one available for testing but I’m wondering if you could select a year or two newer and get the function.

[@brianmoore5367]

I have a My17 WRX STI. I will try to manually enter a different year or even model and see if that works

[@RacingBanana96]

@@brianmoore5367have you figured it out yet?

[@alpha2daquest885]

Thinkdiag+ software and Autel MaxiDAS DS808S is not capable of thiis procedure on my 2011 Forester X. It will not erase the permanent P0018 (fyi with engine running Left Intake VVT angle is 18 degres) because it does not have Test Mode. What it does have is " Dealer Inspection Mode" which has a different function. Also in live data mode it does not have VVT initial position learning values section. Are these scanners not capable or is the ECM program of my vehicle is not set up for Test Mode as newer cars? Please help and I thank you Practical Mechanic for the vids.

[@ThePracticalMechanic]

I wonder if it will work if you manually select the wrong vehicle. Perhaps a couple years newer. I haven’t run into a vehicle that is listed on the TSB I couldn’t reset except the BRZ. I have not had one that early in the bay that needed a reset. Some of the early vehicles did not have learning value display until after a reflash and some never got the data. Page 14 of the TSB gives instruction for testing. One step is to unplug vvt solenoids and start engine while monitoring actual vvt position within the first 10 seconds after start up. If the value is +\-10 then change the solenoid and recheck. If it’s more than 10 degrees inspect the timing chain. You can swap solenoids left to right and see if the problem moves to the other bank as well.

[@alpha2daquest885]

@@ThePracticalMechanic Thanks for replying. Yes I tried selecting newer years and even different regions. I've already bought two OCV solenoid and installed one on the driver side. That was my first try at it. Might install the passenger as well to see a miracle. Also did read page 14 but I already returned the scan tools as it did not have test mode as an option. Do you think the Autel 906ts will have this test mode? I might get that next but its expensive. A little background I just rebuilt this engine and during engine prime the Vvt sprockets would not lock (they kept clicking) due to no oil pressure. I couldn't get oil light to go off. After many attemps I started the engine and the sprockets finally locked. I dont want to disassemble engine just yet but wanted to do your procedure first to determine if the culprit is the Vvt learned values. It seems like manufacturers are designing newer vehicles as extortion machines. What a world we live in.

[@mithunmadushan7050]

@@alpha2daquest885any update????????

[@alpha2daquest885]

​​@@mithunmadushan7050 Update! Although I couldn't not get the tool to do this procedure I did fix my issue. I replaced the cam gear as well as the filter on the cam carrier because I may have installed it deeper than it was supposed to be. The new cam gear is genuine OEM and was redesigned as the originals were prone to failure; I only replaced the side with issue. I'm happy to say my issue was resolved after this. I used Tactrix sofware along with Subaruedit to confirm cam angle do not stick anymore. I'm glad because. Hope this helps. Praise YHWH for ever!