Crackle pops during wot - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Dr. BRZ · 11-12-2018, 10:48 PM

As the title says, my problem is when i wot during high rpms, the car will stall and make crackle pop sounds. When it does that, it won't let me go pass that high rpm for example 6000rpm. The needle just keeps bouncing off at 6000. I cant redline to 7600rpm. I am fbo and tuned on e85. I have replaced the clutch switch and same problem occurs. Can it be the injectors? Or something else?
I have changed the spark plugs and heat wrapped the ignition coils.
Besides wot, the car drives just fine.

mswbrz · 11-12-2018, 10:57 PM

Is the rev limiter changed ?

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Dr. BRZ · 11-12-2018, 11:03 PM

Quote:

Originally Posted by mswbrz

Is the rev limiter changed ?

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I have it at 7300rpm.
I can't even get to 7000rpm.

86MLR · 11-12-2018, 11:21 PM

Stop doing it and get it on a dyno for some diagnostics.

Dr. BRZ · 11-13-2018, 12:14 AM

Quote:

Originally Posted by 86MLR

Stop doing it and get it on a dyno for some diagnostics.

It doesn't throw any cel

mswbrz · 11-13-2018, 12:16 AM

Perhaps try reflashing your tune ?

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86MLR · 11-13-2018, 12:47 AM

Quote:

Originally Posted by Dr. BRZ

It doesn't throw any cel

Maybe a coil, a plug, AFR????

If it's popping on throttle that's a bad thing.

Brz866 · 11-13-2018, 01:12 AM

Could the problem be related to direct injector seals? They're known to make a popping/crackling sound when they fail.

Lantanafrs2 · 11-13-2018, 11:27 AM

Bad fuel?

Dr. BRZ · 11-13-2018, 12:38 PM

Quote:

Originally Posted by Brz866

Could the problem be related to direct injector seals? They're known to make a popping/crackling sound when they fail.

Thats what i am thinking and hopefully that is the problem cause if not, I'm selling the brz lol

Dr. BRZ · 11-13-2018, 12:39 PM

Quote:

Originally Posted by Lantanafrs2

Bad fuel?

No i dont think, ive been using the same gas station for years. The first time this happened was this year.

Dr. BRZ · 11-13-2018, 12:39 PM

Quote:

Originally Posted by mswbrz

Perhaps try reflashing your tune ?

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Tried multiple times and still happens

Brz866 · 11-13-2018, 12:47 PM

Quote:

Originally Posted by Dr. BRZ

Thats what i am thinking and hopefully that is the problem cause if not, I'm selling the brz lol

I would say the tell tale sign is if the crackling/popping is coming from under the hood and not exhaust. 2013s did have a known DI seal issue as well.

Kodename47 · 11-13-2018, 01:03 PM

Is this recent? Have you changed the tune on the ECU recently? Does it seem like a rev limiter? If it seems like a rev limiter it probably is a rev limiter. It does sound to me like the OFT launch control or EcuTek FFS.

11-12-2018, 11:21 PM	#4
86MLR Senior Member Join Date: Aug 2018 Drives: 2002 VX Commodore SS LS1 Auto Location: Sydney Posts: 2,203 Thanks: 500 Thanked 2,185 Times in 1,111 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Stop doing it and get it on a dyno for some diagnostics. __________________ Disclaimer: This post represents the official views of the voices in my head at the time of posting. http://www.ft86club.com/forums/showthread.php?t=133311 I'm only here for the biscuits

11-13-2018, 01:03 PM	#14
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,629 Times in 1,112 Posts Mentioned: 155 Post(s) Tagged: 1 Thread(s)	Is this recent? Have you changed the tune on the ECU recently? Does it seem like a rev limiter? If it seems like a rev limiter it probably is a rev limiter. It does sound to me like the OFT launch control or EcuTek FFS. __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

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11-12-2018, 10:57 PM	#2
mswbrz Senior Member Join Date: Aug 2014 Drives: 2013 brz limited / galaxy blue Location: Oakdale Posts: 230 Thanks: 151 Thanked 66 Times in 43 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Is the rev limiter changed ? Sent from my iPhone using Tapatalk

11-13-2018, 12:16 AM	#6
mswbrz Senior Member Join Date: Aug 2014 Drives: 2013 brz limited / galaxy blue Location: Oakdale Posts: 230 Thanks: 151 Thanked 66 Times in 43 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Perhaps try reflashing your tune ? Sent from my iPhone using Tapatalk

11-13-2018, 01:12 AM	#8
Brz866 Member Join Date: Nov 2017 Drives: Series Blue WRB JRSC C38 HBP Flex Location: Pittsburgh Posts: 77 Thanks: 10 Thanked 27 Times in 23 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Could the problem be related to direct injector seals? They're known to make a popping/crackling sound when they fail.

11-13-2018, 11:27 AM	#9
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)	Bad fuel?

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