follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Issues | Warranty | Recalls / TSB

Issues | Warranty | Recalls / TSB Problems, issues, recalls, TSBs


User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-02-2020, 05:48 PM   #29
Tonrogs
Senior Member
 
Join Date: Apr 2018
Drives: 2014 BRZ Limited, Satin White Pearl
Location: WI, 53593
Posts: 106
Thanks: 10
Thanked 40 Times in 30 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Assuming everything works properly on startup, vvt should enable within 5 seconds. Typically right away.
Id start with techstream to narrow the possibilities.
__________________
'14 SWP BRZ 6MT | FBM built 9:1cr engine w/ GTX3076R Turbo | Mazworx CD009 trans swap | EcuTek | Jackson Racing Dual Oil Cooler/Radiator | SPAL fans | JDL 3" Dual Resonated OP/FP | Perrin 3" | Radium Dual Cans | 18" Rota Titans | M85 3.73 diff | DSS 1k axles | And more....too much more....ugh.
Tonrogs is offline   Reply With Quote
The Following 2 Users Say Thank You to Tonrogs For This Useful Post:
DarkPira7e (02-02-2020), Ultramaroon (02-02-2020)
Old 02-02-2020, 06:10 PM   #30
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,183
Thanks: 499
Thanked 1,059 Times in 769 Posts
Mentioned: 64 Post(s)
Tagged: 0 Thread(s)
@Ultramaroon
i ll show you a log of my car just after the rebuild
I threw a rod and bent intake cam #1 together with 2 intake valves
Subie mechanic didnt want to change the variator of that cam but in the log you can see how much it oscillated

https://datazap.me/u/tommbrz/prova-b...&data=12-30-31

Anyway, vvt activated always and after 30km it fixed itself and engine worked perfectly, as per log of today afternoon I posted before of a cold start

Then i started again the car and now vvt doesn t enable and cam intake #1 oscillates super quickly from - 0.6 to 1.1

Could be the variator that needs to be changed? is that spool valve part of it?
tomm.brz is online now   Reply With Quote
Old 02-02-2020, 08:31 PM   #31
DarkPira7e
Rust bucket enthusiast
 
DarkPira7e's Avatar
 
Join Date: Feb 2017
Drives: 2013 Turbo Firestorm FRS
Location: Vermont
Posts: 3,926
Thanks: 3,196
Thanked 4,093 Times in 2,044 Posts
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
I'm going to try just changing out the oil. I shouldn't have to but it's worth a shot. Thanks for your participation everyone; maybe we can unravel more about the VVT system
DarkPira7e is offline   Reply With Quote
Old 02-02-2020, 08:35 PM   #32
Tonrogs
Senior Member
 
Join Date: Apr 2018
Drives: 2014 BRZ Limited, Satin White Pearl
Location: WI, 53593
Posts: 106
Thanks: 10
Thanked 40 Times in 30 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
I'm going to try just changing out the oil. I shouldn't have to but it's worth a shot. Thanks for your participation everyone; maybe we can unravel more about the VVT system
I assume you do not have an oil pressure gauge?

Also, if you use techstream, you could rule out the oil as being a potential cause to this issue.
__________________
'14 SWP BRZ 6MT | FBM built 9:1cr engine w/ GTX3076R Turbo | Mazworx CD009 trans swap | EcuTek | Jackson Racing Dual Oil Cooler/Radiator | SPAL fans | JDL 3" Dual Resonated OP/FP | Perrin 3" | Radium Dual Cans | 18" Rota Titans | M85 3.73 diff | DSS 1k axles | And more....too much more....ugh.
Tonrogs is offline   Reply With Quote
Old 02-02-2020, 08:42 PM   #33
DarkPira7e
Rust bucket enthusiast
 
DarkPira7e's Avatar
 
Join Date: Feb 2017
Drives: 2013 Turbo Firestorm FRS
Location: Vermont
Posts: 3,926
Thanks: 3,196
Thanked 4,093 Times in 2,044 Posts
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Tonrogs View Post
I assume you do not have an oil pressure gauge?

Also, if you use techstream, you could rule out the oil as being a potential cause to this issue.
I don't have one, you're correct. I don't have techstream either. Might be worth getting
DarkPira7e is offline   Reply With Quote
Old 02-02-2020, 09:44 PM   #34
Tonrogs
Senior Member
 
Join Date: Apr 2018
Drives: 2014 BRZ Limited, Satin White Pearl
Location: WI, 53593
Posts: 106
Thanks: 10
Thanked 40 Times in 30 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
I don't have one, you're correct. I don't have techstream either. Might be worth getting
it definitely is worth getting. Just need a $15 adapter from ebay.
http://www.ft86club.com/forums/showthread.php?p=1920724
__________________
'14 SWP BRZ 6MT | FBM built 9:1cr engine w/ GTX3076R Turbo | Mazworx CD009 trans swap | EcuTek | Jackson Racing Dual Oil Cooler/Radiator | SPAL fans | JDL 3" Dual Resonated OP/FP | Perrin 3" | Radium Dual Cans | 18" Rota Titans | M85 3.73 diff | DSS 1k axles | And more....too much more....ugh.
Tonrogs is offline   Reply With Quote
Old 02-02-2020, 10:29 PM   #35
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by tomm.brz View Post
[MENTION=87905]Could be the variator that needs to be changed? is that spool valve part of it?
I am figuring out how to log using techstream. The UI is not quite... Well, it sucks.

When you say variator, could it be what I understand is called the phasor?
__________________
Ultramaroon is offline   Reply With Quote
Old 02-02-2020, 10:52 PM   #36
makinen
Senior Member
 
makinen's Avatar
 
Join Date: Jan 2013
Drives: Toyota 86
Location: South Korea
Posts: 267
Thanks: 126
Thanked 198 Times in 115 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Hi,

I've experiencing non-moving AVCS issue also after repairing rocker arm exodus. When disabled, intake cams are not moving even in the Active Test of Techstream, but exhaust cams moving. Both are not moving in the Tactrix OP2 logs.

But after doing repeated engine braking, finally it works again. Like driving pattern for P000A, P0011, etc.

Name:  20200203_122749.jpg
Views: 1398
Size:  259.4 KB

But don't know how long it takes whenever new map is loaded. Just keep doing above driving pattern until cams are moving.
__________________
/* Custom underbody panels and diffuser
Custom electric water pump and PWM controller
HKS GT EL header, 17MY intake manifold */
makinen is offline   Reply With Quote
The Following 5 Users Say Thank You to makinen For This Useful Post:
Compelica (02-04-2021), DarkPira7e (02-03-2020), JIM THEO (02-03-2020), tomm.brz (02-03-2020), Ultramaroon (02-02-2020)
Old 02-02-2020, 11:40 PM   #37
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by makinen View Post
Hi,

I've experiencing non-moving AVCS issue also after repairing rocker arm exodus. When disabled, intake cams are not moving even in the Active Test of Techstream, but exhaust cams moving. Both are not moving in the Tactrix OP2 logs.

But after doing repeated engine braking, finally it works again. Like driving pattern for P000A, P0011, etc.

Attachment 184550

But don't know how long it takes whenever new map is loaded. Just keep doing above driving pattern until cams are moving.
I see that fuel cut when decelerating in region-D is emphasized. Without knowing exactly what does what, it still makes sense. I've noticed that, at no matter what RPM, in fuel cut (mode 4) the VVT angles lock to zero. The intake phasors have a spring-loaded zero lock. The exhaust phasors do not.
__________________
Ultramaroon is offline   Reply With Quote
Old 02-02-2020, 11:56 PM   #38
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,183
Thanks: 499
Thanked 1,059 Times in 769 Posts
Mentioned: 64 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
I am figuring out how to log using techstream. The UI is not quite... Well, it sucks.

When you say variator, could it be what I understand is called the phasor?
Yes sorry, i meant that
i bent that cam and mechanic assumed that from the shock, i needed to change also the 2 chains and other things correlated to them, but not the phasor.. but now i d really preferred to have changed it
tomm.brz is online now   Reply With Quote
The Following User Says Thank You to tomm.brz For This Useful Post:
Ultramaroon (02-03-2020)
Old 02-03-2020, 12:09 AM   #39
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by tomm.brz View Post
Yes sorry, i meant that
i bent that cam and mechanic assumed that from the shock, i needed to change also the 2 chains and other things correlated to them, but not the phasor.. but now i d really preferred to have changed it
I have one phasor that flutters too but I can only see it with tactrix sample rates. Unfortunately no one has the aim angle (input) parameters for tactrix definition files. Tonight I am trying to figure out how to get higher resolution from techstream.
__________________
Ultramaroon is offline   Reply With Quote
Old 02-03-2020, 12:12 AM   #40
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,183
Thanks: 499
Thanked 1,059 Times in 769 Posts
Mentioned: 64 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Tonrogs View Post
I assume you do not have an oil pressure gauge?

Also, if you use techstream, you could rule out the oil as being a potential cause to this issue.
i have techstream, i mean i ll just have to find again a cheap adaptor because for now all I have is ecutek but i'll do.
As Ultramaroon said its user interface is frustrating, can you help us find this thing we are talking about in it?

I read somewhere here in the forum that people needed to change the ecu because it stored wrong initial position values.. doesn t the ecu reset the value after a reset or. flash?
tomm.brz is online now   Reply With Quote
Old 02-03-2020, 12:17 AM   #41
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,183
Thanks: 499
Thanked 1,059 Times in 769 Posts
Mentioned: 64 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
I have one phasor that flutters too but I can only see it with tactrix sample rates. Unfortunately no one has the aim angle (input) parameters for tactrix definition files. Tonight I am trying to figure out how to get higher resolution from techstream.
well ecutek is not so bad in refresh rate? i get 12 hz with bluetooth and around 40-50hz with cable and proecu, and i see the flutter real time
tomm.brz is online now   Reply With Quote
Old 02-03-2020, 12:19 AM   #42
Ultramaroon
義理チョコ
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,825
Thanks: 52,063
Thanked 36,469 Times in 18,894 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by tomm.brz View Post
I read somewhere here in the forum that people needed to change the ecu because it stored wrong initial position values.. doesn t the ecu reset the value after a reset or. flash?
It is true. The initial position value table can only be updated when the VVT system is judged to be "OK." The problem is when the root cause for the initial position value drift is corrected, the bad value in the table forces a large enough error between commanded and measured angles to throw the "not OK" flag. It can never re-learn.
__________________
Ultramaroon is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Edge Insight CS Monitor (1996 & Newer OBDII Enabled Vehicle) FBPARTS Exterior Parts - The Rest 3 12-02-2015 04:08 PM
Album art enabled but not displayed (bespoke)? Mexibeetle Electronics | Audio | NAV | Infotainment 7 01-22-2013 09:39 PM


All times are GMT -4. The time now is 07:01 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.