Idle issue? - Page 62 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

BaeK · 07-22-2013, 06:38 PM

Quote:

Originally Posted by nunonuna

I took video of it today at lunch time.
I was lucky enough to take it in my video while I'm stopping. As the speed reaches 23mph, you can hear sound like something rattles which I suspect engine being stalling.
Usually it does it rpm around 500 but for some reason, it does that around 700. I will try another video so I can capture the moment when it does it around 500.

Also, can anyone confirm that the rattle sound familiar to you?

I have the same issue, but only when the AC is on. This happens when I coast to a stop when my shifter is on neutral. Without the AC, this does not happen.

markr01000 · 09-17-2013, 08:37 AM

Quote:

Originally Posted by nunonuna

I took video of it today at lunch time.
I was lucky enough to take it in my video while I'm stopping. As the speed reaches 23mph, you can hear sound like something rattles which I suspect engine being stalling.
Usually it does it rpm around 500 but for some reason, it does that around 700. I will try another video so I can capture the moment when it does it around 500.

Also, can anyone confirm that the rattle sound familiar to you?

Mine does that exactly. I just bought it a week ago.
That sounds like detonation, which has me concerned on 12.5:1 motor.
I want to add a supercharger, but not till this issue is solved.
The last thing I need is a blown motor leaning out and detonating.

MI FR-S · 09-19-2013, 10:43 AM

Quote:

Originally Posted by BaeK

I have the same issue, but only when the AC is on. This happens when I coast to a stop when my shifter is on neutral. Without the AC, this does not happen.

Same here. Something like 1 in 5 times when coming to a stop with the AC on it will happen. Does it with clutch disengaged or with clutch engaged and car in neutral.

Naturally, the dealership have been unable to replicate

nunonuna · 09-19-2013, 11:37 AM

I don't know if I'm too early to say this, but after I install catback exhaust, it never happen to me for about two weeks. Except I put silencer on it tho. Who knows it might be coincidence. Lol

jeebus · 09-19-2013, 07:04 PM

Quote:

Originally Posted by nunonuna

I took video of it today at lunch time.
I was lucky enough to take it in my video while I'm stopping. As the speed reaches 23mph, you can hear sound like something rattles which I suspect engine being stalling.
Usually it does it rpm around 500 but for some reason, it does that around 700. I will try another video so I can capture the moment when it does it around 500.

Also, can anyone confirm that the rattle sound familiar to you?

my car does this from time to time, usually only with AC on. It never did it until AFTER I got the recall-emissions ECU reflash. I have 22k miles.

Mr.EvoMR · 11-06-2013, 09:05 PM

SO is there a fix?

BaeK · 11-22-2013, 08:52 AM

Quote:

Originally Posted by MI FR-S

Same here. Something like 1 in 5 times when coming to a stop with the AC on it will happen. Does it with clutch disengaged or with clutch engaged and car in neutral.

Naturally, the dealership have been unable to replicate

Yeah, I went to the dealership as well to see if they can replicate the issue, but they said they weren't able to replicate it.

Haven't used AC for a while, as it's been pretty chilly at where I live, but I guess I'll see what happens when I get a chance to use the AC in the upcoming summer.

nunonuna · 11-22-2013, 11:25 AM

Quote:

Originally Posted by nunonuna

I don't know if I'm too early to say this, but after I install catback exhaust, it never happen to me for about two weeks. Except I put silencer on it tho. Who knows it might be coincidence. Lol

Update: after install cat back exhaust about 3000 miles, it seems never happen to me. I got rid off silencer since last post and I only had this issue about 2-3 times during 3k miles. A lot better than once everyday. Lol

Sent from my Galaxy Nexus using Tapatalk

Deathalo · 05-14-2014, 12:03 AM

Quote:

Originally Posted by nunonuna

I took video of it today at lunch time.
I was lucky enough to take it in my video while I'm stopping. As the speed reaches 23mph, you can hear sound like something rattles which I suspect engine being stalling.
Usually it does it rpm around 500 but for some reason, it does that around 700. I will try another video so I can capture the moment when it does it around 500.

Also, can anyone confirm that the rattle sound familiar to you?

What's the status on this problem, has anyone gotten it fixed yet? Mine does the exact same thing and it doesn't sound normal...

swpbrz · 05-15-2014, 01:22 PM

I have identical issue as in video too

calmtigers · 10-13-2014, 10:23 PM

mine does the same thing with the AC on

xcelir8brz · 10-14-2014, 07:15 AM

Fixed in 10 minutes after 2 years plus. Throttle body coolant bypass. No kidding. No change to routine but this. Amazing.

yomny · 10-14-2014, 07:38 AM

I believe this has to do do with the idle speed being set to low and the AC compressor kicking in, dropping rpms to a stalling point then ecu compensating. I highly doubt it's for anything to do with coolant or throttle body. I've confirmed this with several tuners. If in doubt, turn off your AC, at least in my case that makes the issue go away.

xcelir8brz · 10-14-2014, 07:42 AM

It is what you say based on load. For some reason in my case in doing the bypass solved the issue. Tested it back and forth and on my AT that is what solved the problem. Not the throttle body plate per se, but possibly less strain on system? I was surprised as heck too. AC on no change to my routine or weather. I couldn't believe it also. It worked for me and still surprised. Especially when I swapped back and forth reproducing problem non bpass then problem went away with bypass. I did this 3x.

10-13-2014, 10:23 PM	#865
calmtigers Senior Member Join Date: Oct 2013 Drives: 2014 Whiteout TRD FR-S 6MT Location: Fresno / DTLA Posts: 928 Thanks: 628 Thanked 376 Times in 214 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	mine does the same thing with the AC on __________________ "I love dinosaurs so much that I’ve based my life on burning as much black melted dinosaur flesh as I can on a daily basis...even the screaming sound of prehistoric reptilians being burnt through any of the classic Japanese four cylinders gives me great joy."

10-14-2014, 07:38 AM	#867
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	Idle issue? I believe this has to do do with the idle speed being set to low and the AC compressor kicking in, dropping rpms to a stalling point then ecu compensating. I highly doubt it's for anything to do with coolant or throttle body. I've confirmed this with several tuners. If in doubt, turn off your AC, at least in my case that makes the issue go away. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

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11-06-2013, 09:05 PM	#860
Mr.EvoMR Member Join Date: Mar 2013 Drives: 2013 Scion Fr-s Location: Richland,WA Posts: 26 Thanks: 262 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	SO is there a fix?

05-15-2014, 01:22 PM	#864
swpbrz Senior Member Join Date: Mar 2014 Drives: swp brz limited Location: ca Posts: 205 Thanks: 30 Thanked 81 Times in 46 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I have identical issue as in video too

10-14-2014, 07:15 AM	#866
xcelir8brz Senior Member Join Date: May 2012 Drives: 2013 BRZ Limited Location: Earth Posts: 1,029 Thanks: 45 Thanked 235 Times in 157 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Fixed in 10 minutes after 2 years plus. Throttle body coolant bypass. No kidding. No change to routine but this. Amazing.

10-14-2014, 07:42 AM	#868
xcelir8brz Senior Member Join Date: May 2012 Drives: 2013 BRZ Limited Location: Earth Posts: 1,029 Thanks: 45 Thanked 235 Times in 157 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	It is what you say based on load. For some reason in my case in doing the bypass solved the issue. Tested it back and forth and on my AT that is what solved the problem. Not the throttle body plate per se, but possibly less strain on system? I was surprised as heck too. AC on no change to my routine or weather. I couldn't believe it also. It worked for me and still surprised. Especially when I swapped back and forth reproducing problem non bpass then problem went away with bypass. I did this 3x.

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