follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Community Calendar Today's Posts Search

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.

Register and become an FT86Club.com member. You will see fewer ads

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-15-2013, 11:48 AM   #1
Urmyson
Senior Member
 
Join Date: Aug 2013
Drives: BRZ
Location: FL
Posts: 191
Thanks: 12
Thanked 45 Times in 28 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Torque Knock Test

I have a Unichip and been running Torque. The other day i found the Knock Detector add-on and tried it out. It almost always said possible knock detected. It's usually -.05 correction out of 15-20 samples(about 10 secs of WOT). Is this normally or should i run a map to reduce the timing? I don't know if the app is reliable or if i shouldn't worry about it.

Thanks,
Joe
Urmyson is offline   Reply With Quote
Old 10-15-2013, 11:52 AM   #2
topazsparrow
Senior Member
 
Join Date: Jul 2012
Drives: slow
Location: Canada
Posts: 293
Thanks: 87
Thanked 158 Times in 61 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
I'd like to hear someone with some experience chime in here.

The stock tune is certainly known to be a little knocky, it could be that the sensor is picking up on knock frequently if you're running not-so-great gas.

The Torque App gets that value from the ECU afaik. I don't know much about how reliable the custom PID's are though.
topazsparrow is offline   Reply With Quote
Old 10-15-2013, 04:28 PM   #3
fenton
Senior Member
 
Join Date: May 2012
Drives: 2013 FR-S
Location: Calgary
Posts: 2,086
Thanks: 526
Thanked 1,614 Times in 726 Posts
Mentioned: 120 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Urmyson View Post
I have a Unichip and been running Torque. The other day i found the Knock Detector add-on and tried it out. It almost always said possible knock detected. It's usually -.05 correction out of 15-20 samples(about 10 secs of WOT). Is this normally or should i run a map to reduce the timing? I don't know if the app is reliable or if i shouldn't worry about it.

Thanks,
Joe
.05 is a wierd knock detection, so i think it is off by two decimal places maybe.

POSTIVE knock correction is good... typically this is called knock learning in our cars and any time you go WOT depending on your tune it should go to 5 if your car is happy.

The other, which is bad is Knock correction CA, if this is incrementing negatively as you go WOT that is bad. A negative 1 here or there isnt bad and is very typical for our cars. If you are increasing to -2 or -3 that is something that should be looked at.
fenton is offline   Reply With Quote
Old 10-15-2013, 04:28 PM   #4
fenton
Senior Member
 
Join Date: May 2012
Drives: 2013 FR-S
Location: Calgary
Posts: 2,086
Thanks: 526
Thanked 1,614 Times in 726 Posts
Mentioned: 120 Post(s)
Tagged: 0 Thread(s)
PS how do you add the knock correction pids to Torque?
fenton is offline   Reply With Quote
Old 10-15-2013, 04:40 PM   #5
Urmyson
Senior Member
 
Join Date: Aug 2013
Drives: BRZ
Location: FL
Posts: 191
Thanks: 12
Thanked 45 Times in 28 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by fenton View Post
PS how do you add the knock correction pids to Torque?
Go to setting and hit Plugins, then hit Installed plugins, and then hit get more plugins. That brings up the list and you can install whatever from there.
Urmyson is offline   Reply With Quote
Old 10-15-2013, 04:54 PM   #6
fenton
Senior Member
 
Join Date: May 2012
Drives: 2013 FR-S
Location: Calgary
Posts: 2,086
Thanks: 526
Thanked 1,614 Times in 726 Posts
Mentioned: 120 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Urmyson View Post
Go to setting and hit Plugins, then hit Installed plugins, and then hit get more plugins. That brings up the list and you can install whatever from there.
I see the "Knock Detector" plugin although i dont think that is what we really need.

We need a custom pid that monitors the below from the ECU. And preferable something that monitors IAM or DAM

1. Knock Correction Learn Value (°CA)
2. Knock Correction (°CA)
fenton is offline   Reply With Quote
Old 10-23-2013, 08:51 PM   #7
topazsparrow
Senior Member
 
Join Date: Jul 2012
Drives: slow
Location: Canada
Posts: 293
Thanks: 87
Thanked 158 Times in 61 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
The knock plugin stinks. Has anyone found a PID for this?
topazsparrow is offline   Reply With Quote
Old 10-23-2013, 09:50 PM   #8
Calum
That Guy
 
Join Date: Dec 2011
Drives: 2013 asphalt FRS MT
Location: Halifax, Nova Scotia
Posts: 4,865
Thanks: 5,058
Thanked 2,868 Times in 1,499 Posts
Mentioned: 82 Post(s)
Tagged: 1 Thread(s)
@Guff, another one popped up. I request you preform your magic.
Calum is offline   Reply With Quote
Old 10-23-2013, 10:05 PM   #9
jamesm
Banned
 
Join Date: Mar 2013
Drives: 2013 FR-S
Location: Orlando, FL
Posts: 2,929
Thanks: 1,166
Thanked 2,293 Times in 1,180 Posts
Mentioned: 313 Post(s)
Tagged: 4 Thread(s)
Quote:
Originally Posted by Urmyson View Post
I have a Unichip and been running Torque. The other day i found the Knock Detector add-on and tried it out. It almost always said possible knock detected. It's usually -.05 correction out of 15-20 samples(about 10 secs of WOT). Is this normally or should i run a map to reduce the timing? I don't know if the app is reliable or if i shouldn't worry about it.

Thanks,
Joe
If you're only getting 15-20 samples in 10 seconds of logging, your interface is way too slow and you're not logging useful information.
jamesm is offline   Reply With Quote
Old 10-24-2013, 07:24 PM   #10
arghx7
Senior Member
 
Join Date: Nov 2011
Drives: car
Location: cold
Posts: 599
Thanks: 72
Thanked 611 Times in 185 Posts
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by [URL="http://www.ft86club.com/forums/member.php?u=11086
fenton[/URL]"]I see the "Knock Detector" plugin although i dont think that is what we really need.

We need a custom pid that monitors the below from the ECU. And preferable something that monitors IAM or DAM

1. Knock Correction Learn Value (°CA)
2. Knock Correction (°CA)
If the stock ECU won't report that from a request over CAN, you won't be able to read it. Tools like RomRaider actually break into the ECU and read memory addresses.
arghx7 is offline   Reply With Quote
Old 10-24-2013, 08:27 PM   #11
jamesm
Banned
 
Join Date: Mar 2013
Drives: 2013 FR-S
Location: Orlando, FL
Posts: 2,929
Thanks: 1,166
Thanked 2,293 Times in 1,180 Posts
Mentioned: 313 Post(s)
Tagged: 4 Thread(s)
Quote:
Originally Posted by arghx7 View Post
If the stock ECU won't report that from a request over CAN, you won't be able to read it. Tools like RomRaider actually break into the ECU and read memory addresses.
you can get both of those with techstream.
jamesm is offline   Reply With Quote
 
Reply


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
BC Racing Coilovers - Knock? 636 Suspension | Chassis | Brakes -- Sponsored by 949 Racing 42 12-09-2015 11:41 PM
FR-S Rod knock pozer Issues | Warranty | Recalls / TSB 95 11-03-2015 10:39 AM
ca-fi knock off questions fionnsfrs Electronics | Audio | NAV | Infotainment 2 10-27-2013 02:47 PM
Knock on e85 not a problem? gdrider77 Forced Induction 76 10-21-2013 12:36 AM
Would you rather buy knock off parts for your car? EJ20 Engine, Exhaust, Transmission 63 11-02-2011 07:17 PM


All times are GMT -4. The time now is 06:30 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2026 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.