Click if you have costum tune + cold weather - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Muskokan · 11-26-2013, 01:31 PM

Do you guys with costum tunes experience the cold start popping?
http://www.ft86club.com/forums/showt...t=43408&page=2

Legend says it's the cat possibly just warming up, just wanted to ask. My shop might keep it overnight this week to replicate It in the morning. Mine got super bad at -20 c, thanks!

jvincent · 11-26-2013, 03:24 PM

I park inside at home and there's only been one really cold day where it's been parked outside but I haven't noticed anything yet.

EDIT: Should have mentioned I have an OpenFlash tune on an otherwise stock car.

s2d4 · 11-26-2013, 04:11 PM

What happens when you put hot water in a glass taken straight from the freezer?

zc06_kisstherain · 11-26-2013, 05:32 PM

Quote:

Originally Posted by s2d4

What happens when you put hot water in a glass taken straight from the freezer?

water will freeze

Mike86 · 11-26-2013, 08:52 PM

I have an oft tune as well and had no symptoms whatsoever on startup and while driving its around -15 these past few days where i live!!

bee_are_zee · 11-26-2013, 09:15 PM

I have the OFT e85 tune and I got some pops during one startup (4 maybe) but once the rpms dropped nothing. I believe it is extra fuel detonating in the intake or the header (just my thoughts).

DJCarbine · 11-26-2013, 09:55 PM

Pretty sure its just the "cat warmup" that the ECU does. Retarded timing + rich startup = popping. It is VERY pronounced with a borla UEL + N1 exhaust. It sounds like the bathroom the morning after taco bell night.

s2d4 · 11-26-2013, 10:06 PM

Quote:

Originally Posted by zc06_kisstherain

water will freeze

Try it and see what happens.

PStaff716 · 11-27-2013, 05:47 AM

I do not have a custom tune yet, and I get popping every single cold start. Buffalo has been like 20-35 degrees for a week now.

Although, the popping occurs anywhere below 45ish F. I'm newer to cars in terms of assessing these types of things but I think what djcarbine said is a reasonable conclusion

Disclaimer: I park in the garage, not exactly toasty by any means though

zc06_kisstherain · 11-27-2013, 09:12 AM

Quote:

Originally Posted by s2d4

Try it and see what happens.

ok. i will get back to ya. lol

11-26-2013, 01:31 PM	#1
Muskokan Senior Member Join Date: Aug 2013 Drives: white Sport-tech Location: Ontario Posts: 676 Thanks: 204 Thanked 320 Times in 149 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	Click if you have costum tune + cold weather Do you guys with costum tunes experience the cold start popping? http://www.ft86club.com/forums/showt...t=43408&page=2 Legend says it's the cat possibly just warming up, just wanted to ask. My shop might keep it overnight this week to replicate It in the morning. Mine got super bad at -20 c, thanks!

11-26-2013, 09:55 PM	#7
DJCarbine Thupercharged Join Date: Mar 2013 Drives: 2013 FR-S Location: La Grange Park, IL. Posts: 1,501 Thanks: 116 Thanked 751 Times in 439 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	Pretty sure its just the "cat warmup" that the ECU does. Retarded timing + rich startup = popping. It is VERY pronounced with a borla UEL + N1 exhaust. It sounds like the bathroom the morning after taco bell night. __________________ 2013 FRS Vortech V3 11psi Revworks UEL - PLM Overpipe - MOTIV catted frontpipe - Invidia Q300 2019 Series.Grey STI - Stage1+ SF

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11-26-2013, 03:24 PM	#2
jvincent Senior Member Join Date: Sep 2013 Drives: 2022 WRB BRZ Sport-Tech Location: Ottawa, Canada Posts: 1,746 Thanks: 131 Thanked 1,410 Times in 715 Posts Mentioned: 25 Post(s) Tagged: 2 Thread(s)	I park inside at home and there's only been one really cold day where it's been parked outside but I haven't noticed anything yet. EDIT: Should have mentioned I have an OpenFlash tune on an otherwise stock car.

11-26-2013, 04:11 PM	#3
s2d4 Senior Member Join Date: Mar 2013 Drives: R32 GTR, AW11 MR2 SC, GTS86 R Location: OZ Posts: 2,615 Thanks: 603 Thanked 1,223 Times in 708 Posts Mentioned: 35 Post(s) Tagged: 0 Thread(s)	What happens when you put hot water in a glass taken straight from the freezer?

11-26-2013, 08:52 PM	#5
Mike86 Senior Member Join Date: Nov 2012 Drives: Scion frs Location: Montreal Posts: 105 Thanks: 253 Thanked 13 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I have an oft tune as well and had no symptoms whatsoever on startup and while driving its around -15 these past few days where i live!!

11-26-2013, 09:15 PM	#6
bee_are_zee Senior Member Join Date: Nov 2013 Drives: GBS BRZ Location: Kentucky Posts: 256 Thanks: 42 Thanked 98 Times in 60 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I have the OFT e85 tune and I got some pops during one startup (4 maybe) but once the rpms dropped nothing. I believe it is extra fuel detonating in the intake or the header (just my thoughts).

11-27-2013, 05:47 AM	#9
PStaff716 Senior Member Join Date: Jun 2013 Drives: 2013 Raven FRS 6MT Location: Buffalo, NY Posts: 125 Thanks: 161 Thanked 37 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I do not have a custom tune yet, and I get popping every single cold start. Buffalo has been like 20-35 degrees for a week now. Although, the popping occurs anywhere below 45ish F. I'm newer to cars in terms of assessing these types of things but I think what djcarbine said is a reasonable conclusion Disclaimer: I park in the garage, not exactly toasty by any means though

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