follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
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 08-09-2021, 04:44 AM   #1
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Stalling at idle - HELP!!

Update!!!



Okay so giant horrible news.

A leakdown/compression test was performed. Discovered that it’s leaking in cylinder 3 causing misfires.
Compression test failed in cylinder 2 and 3.

Engine is apart now at Toyota. Not sure what the cause is but the issue is cylinder 3 is not sealing when it’s at the top of its motion and it’s leaking fluid is what I’m told.

Car has 131k miles on it and along with some other maintenance related things (timing chain:tensioner:guides) the car needs a new block I’m told.

Any chance I can get Toyota to fork up some of the bill? Am I SOL?

Looking like $6500 in repairs on a motor that runs and seemingly runs fine after idle. Able to drive it for seemingly years as I’ve been trying to track down my issue for these few years.

Any options? Suggestions?

Thanks!

(Below is my initial issue)


__________________________________________________ _


The problem:

Car runs extremely rich at idle. ��
-30% LTFT
But when under load it seems to even out the trims and run fine.

Mods:

Ptuning header (equal length)
JDL frontpipe (cat+silencer)
Ptuning catback
Grams throttle body (new - hoping this would fix the issue)
K&N Drop in air filter
Running on e85 for 6 years now pretty much exclusively.


Car sits at 600 rpm dips below it at idle then tries to rev up sometimes to like 2.5k rpm. Rinse repeat about 6 times. Sometimes it’ll just stall and sometimes it’ll stall after 2-3 times after it revs itself up and down. Sometimes when accelerating the car has a weird pop noise like plasticy sounding pop and the engine just doesn’t want to move. Often idle dips when pressing the gas pedal before it actually accelerates almost have to pre-rev it just to get the car moving from idle.

I’ve cleaned my stock throttle body, didn’t work so I replaced it with the Grams throttle body, Ran fuel injector cleaner and replaced the fuel solenoid.

Spark plugs were changed at 80k miles and the car now has 130k and I’ve changed them again.

(UPDATED replaced PARTS LIST)

New Sparks OEM
New coil packs Delicious tuning
New throttle body Gramms
New Perrin air intake tube
New air filter K&N
New MAF OEM
New MAP OEM
New O2 sensor OEM
Cut Snorkel ��
New PCV valve
New Oil catch can
New Battery
New Injectors OEM
New OEM Evap solenoid
New DW300C Fuel pump

Unsure what to do from here.

My tuner (Delicious tuning) is out of ideas and has given up helping.

Would removing the header and factory tuning it and then taking it Toyota be my only solution?


Any help is appreciated!

Last edited by Celigts; 09-13-2022 at 01:55 PM. Reason: Updated list of parts
Celigts is offline   Reply With Quote
The Following User Says Thank You to Celigts For This Useful Post:
humfrz (08-09-2021)
Old 08-09-2021, 05:06 AM   #2
Boomerang
86
 
Boomerang's Avatar
 
Join Date: May 2016
Drives: 2015 Toyota GT86 MT UEL E85 RSR CWP
Location: Perth, Western Australia
Posts: 3,293
Thanks: 3,553
Thanked 4,850 Times in 2,166 Posts
Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Celigts View Post
Mods:

Ptuning header (equal length)
JDL frontpipe (cat+silencer)
Ptuning catback
Grams throttle body (new - hoping this would fix the issue)
HKS Drop in air filter
Running on e85 for 6 years now pretty much exclusively.


Car sits at 600 rpm dips below it at idle then tries to rev up sometimes to like 2.5k rpm. Rinse repeat about 6 times. Sometimes it’ll just stall and sometimes it’ll stall after 2-3 times after it revs itself up and down. Sometimes when accelerating the car has a weird pop noise like plasticy sounding pop and the engine just doesn’t want to move. Often idle dips when pressing the gas pedal before it actually accelerates almost have to pre-rev it just to get the car moving from idle.

I’ve cleaned my stock throttle body, didn’t work so I replaced it with the Grams throttle body, Ran fuel injector cleaner and replaced the fuel solenoid.

Spark plugs were changed at 80k miles and the car now has 115k

I NEVER CHANGED the COIL PACKS.
Stock fuel pump.

Changed out a burnt O2 sensor (front) when they had to burn off my old O2 sensor on my stock header. So that’s new, but it’s aftermarket from Autozone and have had this issue ever since putting this exhaust system back onto the car. (Took it off briefly for a state ref ticket)


Unsure what to do from here.
New mass airflow sensor?
New fuel pump?
New spark plugs/coil packs?
New injectors?

My tuner (Delicious tuning) said it could be my Catalytic Converter but my JDL frontpipe was literally new when this started happening. I’ve been just driving like this for about a year now.


Any help is appreciated!



Have you checked/cleaned/replaced your air filter?
Boomerang is offline   Reply With Quote
The Following User Says Thank You to Boomerang For This Useful Post:
Celigts (08-10-2021)
Old 08-09-2021, 10:54 AM   #3
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Boomerang View Post
Have you checked/cleaned/replaced your air filter?
Absolutely. Every oil change.
Celigts is offline   Reply With Quote
The Following User Says Thank You to Celigts For This Useful Post:
Boomerang (08-10-2021)
Old 08-09-2021, 12:41 PM   #4
norcalpb
Senior Member
 
norcalpb's Avatar
 
Join Date: Oct 2013
Drives: 2013 BRZ, 2023 Model 3
Location: SF Bay Area
Posts: 2,287
Thanks: 1,207
Thanked 853 Times in 565 Posts
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
No check engine light? I wonder if your e85 use has degraded the fuel pump. This also sounds like what happened when my fuel pressure regular went bad at 60k miles.
norcalpb is offline   Reply With Quote
The Following User Says Thank You to norcalpb For This Useful Post:
Celigts (08-10-2021)
Old 08-09-2021, 01:10 PM   #5
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,851
Thanks: 28,759
Thanked 31,776 Times in 16,409 Posts
Mentioned: 707 Post(s)
Tagged: 2 Thread(s)
Have you tried disconnecting the negative battery terminal for a spell .... which will allow the ECU relearn some stuff?
humfrz is offline   Reply With Quote
The Following User Says Thank You to humfrz For This Useful Post:
Celigts (08-10-2021)
Old 08-10-2021, 02:17 AM   #6
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by humfrz View Post
Have you tried disconnecting the negative battery terminal for a spell .... which will allow the ECU relearn some stuff?
New battery

And

New grams throttle body, so disconnected battery then also.


Zero check engine lights.
Celigts is offline   Reply With Quote
The Following User Says Thank You to Celigts For This Useful Post:
humfrz (08-10-2021)
Old 08-10-2021, 09:24 AM   #7
FR-S2GT86
Master Collaborator
 
FR-S2GT86's Avatar
 
Join Date: Nov 2019
Drives: Was '15 FR-S, 6MT, Now '15 GT86
Location: West Virginia, USA
Posts: 1,394
Thanks: 208
Thanked 985 Times in 597 Posts
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Celigts View Post
Mods:

Ptuning header (equal length)
JDL frontpipe (cat+silencer)
Ptuning catback
Grams throttle body (new - hoping this would fix the issue)
HKS Drop in air filter
Running on e85 for 6 years now pretty much exclusively.


Car sits at 600 rpm dips below it at idle then tries to rev up sometimes to like 2.5k rpm. Rinse repeat about 6 times. Sometimes it’ll just stall and sometimes it’ll stall after 2-3 times after it revs itself up and down. Sometimes when accelerating the car has a weird pop noise like plasticy sounding pop and the engine just doesn’t want to move. Often idle dips when pressing the gas pedal before it actually accelerates almost have to pre-rev it just to get the car moving from idle.

I’ve cleaned my stock throttle body, didn’t work so I replaced it with the Grams throttle body, Ran fuel injector cleaner and replaced the fuel solenoid.

Spark plugs were changed at 80k miles and the car now has 115k

I NEVER CHANGED the COIL PACKS.
Stock fuel pump.

Changed out a burnt O2 sensor (front) when they had to burn off my old O2 sensor on my stock header. So that’s new, but it’s aftermarket from Autozone and have had this issue ever since putting this exhaust system back onto the car. (Took it off briefly for a state ref ticket)


Unsure what to do from here.
New mass airflow sensor?
New fuel pump?
New spark plugs/coil packs?
New injectors?

My tuner (Delicious tuning) said it could be my Catalytic Converter but my JDL frontpipe was literally new when this started happening. I’ve been just driving like this for about a year now.


Any help is appreciated!
I would get rid of that aftermarket O2 sensor and install the OEM sensor to start. ALWAYS use OEM sensors in these cars from a reputable source. Unfortunately, dealers are the best source for these sensors.

Also, not only are aftermarket sensors NOT reliable, which is reason enough to not use them, now you have to watch out for counterfeit "OEM" parts.
__________________
Quote:
Originally Posted by Mr.ac View Post
My pubes are shaped like the number 86. There for I’m car. Derp
Count to muffens and call again.
I’m 40. So....... say hi to your sisters or daughters.
FR-S2GT86 is offline   Reply With Quote
Old 08-11-2021, 04:58 PM   #8
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by FR-S2GT86 View Post
I would get rid of that aftermarket O2 sensor and install the OEM sensor to start. ALWAYS use OEM sensors in these cars from a reputable source. Unfortunately, dealers are the best source for these sensors.

Also, not only are aftermarket sensors NOT reliable, which is reason enough to not use them, now you have to watch out for counterfeit "OEM" parts.
I'll go replace it today.

Next will be Mass Air Flow Sensor (OEM)
Celigts is offline   Reply With Quote
Old 08-17-2021, 11:49 PM   #9
JohnH
Professional wrench
 
Join Date: Jun 2020
Drives: 2020 BRZ ST RS
Location: BC Canada
Posts: 114
Thanks: 57
Thanked 37 Times in 28 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
check a few things on a scantool, or something that will display engine parameters.

Look at what the ECU is requesting for IAC steps (or however this car plays with idle speeds), and see where its actually idling at

look at TPS both requested and actual

look at cam timing on all 4 cams

look at ignition timing, fuel pressure, anything else related to this. If anything looks off, or isn't what is being requested, start looking there.

The worst thing you can do is to just start tossing parts at it. You may get lucky, or you might replace 6 good parts before you get it

Be logical and reason your way thru it
__________________
2020 BRZ Sport Tech RS World Rally Blue
'18 TS Suspension, camber bolts, custom align
Perrin intake pipe, custom airbox/cold air
Gruppe-S UEL header/overpipe
Wayne Rom Stg 2 tune
JohnH is offline   Reply With Quote
The Following User Says Thank You to JohnH For This Useful Post:
Celigts (08-18-2021)
Old 08-18-2021, 11:44 AM   #10
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by JohnH View Post
check a few things on a scantool, or something that will display engine parameters.

Look at what the ECU is requesting for IAC steps (or however this car plays with idle speeds), and see where its actually idling at

look at TPS both requested and actual

look at cam timing on all 4 cams

look at ignition timing, fuel pressure, anything else related to this. If anything looks off, or isn't what is being requested, start looking there.

The worst thing you can do is to just start tossing parts at it. You may get lucky, or you might replace 6 good parts before you get it

Be logical and reason your way thru it
I have the ECUtek Bluetooth so it connects to my phone and can see all different logs for what the cars doing but I’m not sure what “normal” is.

Also replacing 6 good parts isn’t a problem since I’m at like 115k miles and some of these parts have to be replaced anyways.
Celigts is offline   Reply With Quote
Old 08-18-2021, 12:59 PM   #11
FR-S2GT86
Master Collaborator
 
FR-S2GT86's Avatar
 
Join Date: Nov 2019
Drives: Was '15 FR-S, 6MT, Now '15 GT86
Location: West Virginia, USA
Posts: 1,394
Thanks: 208
Thanked 985 Times in 597 Posts
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Celigts View Post
I have the ECUtek Bluetooth so it connects to my phone and can see all different logs for what the cars doing but I’m not sure what “normal” is.

Also replacing 6 good parts isn’t a problem since I’m at like 115k miles and some of these parts have to be replaced anyways.

There are a couple of people here that know what normal looks like and will look at your logs if you post them, and even give you advice on what to replace.

Did you ever get that O2 sensor replaced?
__________________
Quote:
Originally Posted by Mr.ac View Post
My pubes are shaped like the number 86. There for I’m car. Derp
Count to muffens and call again.
I’m 40. So....... say hi to your sisters or daughters.
FR-S2GT86 is offline   Reply With Quote
Old 05-14-2022, 10:17 AM   #12
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by FR-S2GT86 View Post
There are a couple of people here that know what normal looks like and will look at your logs if you post them, and even give you advice on what to replace.

Did you ever get that O2 sensor replaced?
Replaced the MAF with an OEM.

Same issues.

I’m running -30% LTFT at idle.
Car stalls out nearly every red light now it’s horrible.

Updated main post with parts list replaced.
Celigts is offline   Reply With Quote
Old 05-14-2022, 10:23 AM   #13
Celigts
Senior Member
 
Celigts's Avatar
 
Join Date: Dec 2013
Drives: 2014 Toyota FRS
Location: California
Posts: 203
Thanks: 67
Thanked 22 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Bump
Celigts is offline   Reply With Quote
Old 05-14-2022, 10:36 AM   #14
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,179
Thanks: 497
Thanked 1,057 Times in 767 Posts
Mentioned: 64 Post(s)
Tagged: 0 Thread(s)
No logs, no help
tomm.brz 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
Misfires, rough idle, stalling Cobiflex Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) 16 10-20-2021 03:12 PM
RPM dip, stalling on idle Cebal Issues | Warranty | Recalls / TSB 13 02-02-2021 11:02 PM
pcv delete, surging idle, stalling. solidsnake11 Software Tuning 0 10-01-2020 11:01 PM
Stalling at idle after startup (see logs) Eazy-V Software Tuning 18 04-15-2018 07:33 PM
OFT Stage 2 UEL Help. Rough Idle Stalling shellslinger Software Tuning 11 03-05-2017 09:33 AM


All times are GMT -4. The time now is 02:48 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.