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 10-20-2019, 12:45 PM   #1
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Help - rpm drops after flashing E85 tune.

So like I said, after flashing e85 with oft the car is running kind of bad. Before hand I had flash the stg1 oft tune no problems, the car pulled hard and smooth. I ran the tank low filled with e85. Gave it about 20+ miles just low rav driving. And from the first drive from flash I noticed the rpm drops almost to stall when I release the clutch. And the rpm bounce around when driving and letting off the clutch without giving it gas. Ltft and stft is both between 7-/+. I did change and set the launch control to a lower rpm I don't think that would mess with the tune. Should I reflash it with stock e85 tune? Would it have to relearn e85 if I do? Should I give more time to adjust?

Thank for any advice!


Tldr; after filling up and flashing e85 car runs rough and drops rpm
Joyriding_86 is offline   Reply With Quote
Old 10-20-2019, 01:00 PM   #2
BlOody_BoOger
Senior Member
 
BlOody_BoOger's Avatar
 
Join Date: May 2017
Drives: Hot lava FRS Monogram Charizard
Location: Sacramento Ca
Posts: 329
Thanks: 22
Thanked 85 Times in 63 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Joyriding_86 View Post
So like I said, after flashing e85 with oft the car is running kind of bad. Before hand I had flash the stg1 oft tune no problems, the car pulled hard and smooth. I ran the tank low filled with e85. Gave it about 20+ miles just low rav driving. And from the first drive from flash I noticed the rpm drops almost to stall when I release the clutch. And the rpm bounce around when driving and letting off the clutch without giving it gas. Ltft and stft is both between 7-/+. I did change and set the launch control to a lower rpm I don't think that would mess with the tune. Should I reflash it with stock e85 tune? Would it have to relearn e85 if I do? Should I give more time to adjust?



Thank for any advice!





Tldr; after filling up and flashing e85 car runs rough and drops rpm
Try reflashing it again sometimes the file doesnt flash correctly also make sure you uploaded the correct file specific to your cars i.d

Sent from my GM1915 using Tapatalk
BlOody_BoOger is offline   Reply With Quote
Old 10-20-2019, 03:15 PM   #3
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by BlOody_BoOger View Post
Try reflashing it again sometimes the file doesnt flash correctly also make sure you uploaded the correct file specific to your cars i.d

Sent from my GM1915 using Tapatalk
Will the car have to relearn E85? I have ran stg1 no problem before. I'll try to rewrite later today. Would the LC change have anything to do with it?
Joyriding_86 is offline   Reply With Quote
Old 10-20-2019, 03:50 PM   #4
BlOody_BoOger
Senior Member
 
BlOody_BoOger's Avatar
 
Join Date: May 2017
Drives: Hot lava FRS Monogram Charizard
Location: Sacramento Ca
Posts: 329
Thanks: 22
Thanked 85 Times in 63 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Joyriding_86 View Post
Will the car have to relearn E85? I have ran stg1 no problem before. I'll try to rewrite later today. Would the LC change have anything to do with it?
You would need to let the ECU learn again, if it didn't upload properly, just drive it for like 10miles chill and see what happens


Sent from my GM1915 using Tapatalk
BlOody_BoOger is offline   Reply With Quote
Old 10-20-2019, 03:54 PM   #5
BlOody_BoOger
Senior Member
 
BlOody_BoOger's Avatar
 
Join Date: May 2017
Drives: Hot lava FRS Monogram Charizard
Location: Sacramento Ca
Posts: 329
Thanks: 22
Thanked 85 Times in 63 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Joyriding_86 View Post
Will the car have to relearn E85? I have ran stg1 no problem before. I'll try to rewrite later today. Would the LC change have anything to do with it?
Also when plugging in and out your oft make sure the car is off. Plug in your oft and then turn the car on. If you're connecting and disconnecting it with the car running you can cause the ECU to go into limp mode.

Sent from my GM1915 using Tapatalk
BlOody_BoOger is offline   Reply With Quote
Old 10-20-2019, 04:00 PM   #6
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by BlOody_BoOger View Post
Also when plugging in and out your oft make sure the car is off. Plug in your oft and then turn the car on. If you're connecting and disconnecting it with the car running you can cause the ECU to go into limp mode.

Sent from my GM1915 using Tapatalk
Thanks, and I do unplug and plug sometime while running. I will retune and run lightly for 20 miles and see what happens. Cause if anything I'll just go back to stage 1, I felt more tq and hp in that tune.

Thanks
Joyriding_86 is offline   Reply With Quote
Old 10-20-2019, 04:13 PM   #7
BlOody_BoOger
Senior Member
 
BlOody_BoOger's Avatar
 
Join Date: May 2017
Drives: Hot lava FRS Monogram Charizard
Location: Sacramento Ca
Posts: 329
Thanks: 22
Thanked 85 Times in 63 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Joyriding_86 View Post
Thanks, and I do unplug and plug sometime while running. I will retune and run lightly for 20 miles and see what happens. Cause if anything I'll just go back to stage 1, I felt more tq and hp in that tune.



Thanks
Lol if you do it correctly e85 should feel like you just gave your car an adrenaline shot. It's much more aggressive and and the the throttle response is a lot more sensitive

Sent from my GM1915 using Tapatalk
BlOody_BoOger is offline   Reply With Quote
Old 10-20-2019, 04:33 PM   #8
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by BlOody_BoOger View Post
Lol if you do it correctly e85 should feel like you just gave your car an adrenaline shot. It's much more aggressive and and the the throttle response is a lot more sensitive

Sent from my GM1915 using Tapatalk
Would you think me changing the LC rev limiter could of played apart?
Joyriding_86 is offline   Reply With Quote
Old 10-20-2019, 05:08 PM   #9
steve99
Banned
 
Join Date: Dec 2013
Drives: FT86
Location: Australia
Posts: 7,998
Thanks: 1,035
Thanked 4,987 Times in 2,981 Posts
Mentioned: 598 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Joyriding_86 View Post
Would you think me changing the LC rev limiter could of played apart?

Its possible if you set the LC or FFS rev limt delta to strange values you will get issues.


When you flash a car the flash is either sucessfull or fails if you got a partial flash the car wont even start as checksum routine in ecu will fail.


Flash a un altered e85 tune and see how it goes


Ie no lc or ffs mods and no mods for pops


Just standard oft e85 tune




Are you running stock intake ??
steve99 is offline   Reply With Quote
Old 10-20-2019, 05:19 PM   #10
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by steve99 View Post
Its possible if you set the LC or FFS rev limt delta to strange values you will get issues.


When you flash a car the flash is either sucessfull or fails if you got a partial flash the car wont even start as checksum routine in ecu will fail.


Flash a un altered e85 tune and see how it goes


Ie no lc or ffs mods and no mods for pops


Just standard oft e85 tune




Are you running stock intake ??
Omg Steve! Yes everything is stock minus a borla axle back.
I just re flashed with the e85 stock tune and the car is still running funky. Just sitting here. The rpm is all over the place I just flashed about 10mins ago and was doing the adjusting by driving under 4k rpm
@steve99

Last edited by Joyriding_86; 10-20-2019 at 05:46 PM.
Joyriding_86 is offline   Reply With Quote
Old 10-28-2019, 07:35 PM   #11
aceangel
Member
 
aceangel's Avatar
 
Join Date: Feb 2013
Drives: 13 BRZ WRB LTD 6AT
Location: Los Angeles
Posts: 76
Thanks: 73
Thanked 32 Times in 19 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
I had a similar problem with stalling before but figured it out. My air filter (a K&N drop-in) was old and was clogging up the intake. I changed the filter and it started to idle fine without stalling. Might want to check the air filter.
aceangel is offline   Reply With Quote
The Following User Says Thank You to aceangel For This Useful Post:
Joyriding_86 (11-06-2019)
Old 10-28-2019, 10:15 PM   #12
Lantanafrs2
Senior Member
 
Join Date: Jan 2018
Drives: 2013 frs red
Location: South Florida
Posts: 3,517
Thanks: 2,520
Thanked 3,088 Times in 1,654 Posts
Mentioned: 6 Post(s)
Tagged: 1 Thread(s)
My car idled like crap for 30 miles or so after flashing e85 tune. Cleared up though
Lantanafrs2 is offline   Reply With Quote
The Following User Says Thank You to Lantanafrs2 For This Useful Post:
Joyriding_86 (11-06-2019)
Old 11-06-2019, 02:30 PM   #13
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by aceangel View Post
I had a similar problem with stalling before but figured it out. My air filter (a K&N drop-in) was old and was clogging up the intake. I changed the filter and it started to idle fine without stalling. Might want to check the air filter.
I didn't even think of that. I'm going to Change it out tomorrow. The car drives alot better now. It's just cold starts are taking 2-3 time before running. Thanks mate.
Joyriding_86 is offline   Reply With Quote
Old 11-06-2019, 02:32 PM   #14
Joyriding_86
Member
 
Join Date: Sep 2019
Drives: 2015 Firestorm Frs
Location: Houston, TX
Posts: 33
Thanks: 8
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Lantanafrs2 View Post
My car idled like crap for 30 miles or so after flashing e85 tune. Cleared up though
Yeah I think I jumped the gun on everything even though I have it 70+ miles to learn.
Joyriding_86 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
Lit symbols in dashboard after flashing Xero Limit tune kev0 Software Tuning 19 07-07-2019 06:05 AM
After flashing A new tune to your car John27 Software Tuning 5 06-08-2018 02:03 PM
Oil drops on pulleys? Where'd they come from? Packofcrows Issues | Warranty | Recalls / TSB 14 02-08-2016 11:28 AM
rpm drops to about 500 JM'sFR-S562 Issues | Warranty | Recalls / TSB 8 01-23-2014 07:07 PM
86 Insider Drops Mishimoto 86_Insider Announcements, Contests, Giveaways 3 09-23-2013 08:40 PM


All times are GMT -4. The time now is 08:14 PM.


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.