RPM fluctuation..... - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

axelo · 12-16-2012, 01:53 PM

my car started to do the fluctuation upon 5,000miles after a long drive. This went away upon 10mins after one stop into regular traffic....changed oil at 6,000miles toyota synthetic and subaru oil filter.....no idling problems after oil change...slowly breaking in the elements of the car is to me pretty essential. It all depends on your driving and "making" the engine durable. Thus more efficient in the long run...hope this works the idling problems
Thanks

bAS1c · 12-17-2012, 09:28 PM

Both of the FR-S's I've had did this, however only the second one has the crickets. Then again I only put 380mi on the first one.

avp1 · 12-17-2012, 11:55 PM

There is an open recall on BRZ engine computer software. At my last visit to dealer week ago new software was installed. I didn't notice any significant fluctuation at idle ever since. Idle RPM varies a little bit, but nothing like large dips I had before.

acro · 01-25-2013, 04:30 PM

Quote:

Originally Posted by mugen79

My FRS used to do this too.
I just changed my stock air filter to K&N drop in filter about three days ago and I haven't seen any fluctuation yet. I know it is too early to tell so I will follow up if anything happens.

has the issue returned

mugen79 · 01-25-2013, 04:39 PM

Quote:

Originally Posted by acro

has the issue returned

RPM dip is gone for me after K&N.

Allensworths · 01-29-2013, 12:06 PM

I really love this forum an appreciate all of those who provide solutions, my windows just crapped out this morning and the reset resolved it. Thanks

chenshuo · 01-29-2013, 12:54 PM

Quote:

Originally Posted by Allensworths

I really love this forum an appreciate all of those who provide solutions, my windows just crapped out this morning and the reset resolved it. Thanks

don't forget to thank the owner's manual!

Fontz_86 · 03-26-2013, 11:12 PM

mine does it when balancing the clutch during a stop on a hill

ft86me · 03-27-2013, 12:11 AM

when i got my flash from @Visconti it totally fixed that issue and got improved gas mileage and gained some extra power annnnd launch control annnnnd a few other things. just my .02

Yruyur · 03-27-2013, 12:12 AM

Mine went away with a tune. But it is back now just as bad as before. @23k miles

Sent from my SCH-I535 using Tapatalk 2

MadModder · 04-05-2013, 03:34 PM

I picked up my hot lava manual 86 last week. I noticed my car did that with less than 500km and figured it was just bc it was not broken in. Now with 1600km on it, it still does it. At red lights it will idle for a sec at 600 rpm them drop a bit and immediately catch itself and blip to around 1000-1100. Also recently noticed a, for lack of better description, misfire kind of shake at idle but only when warmed up.

strat61caster · 04-05-2013, 04:00 PM

Quote:

Originally Posted by MadModder

I picked up my hot lava manual 86 last week. I noticed my car did that with less than 500km and figured it was just bc it was not broken in. Now with 1600km on it, it still does it. At red lights it will idle for a sec at 600 rpm them drop a bit and immediately catch itself and blip to around 1000-1100. Also recently noticed a, for lack of better description, misfire kind of shake at idle but only when warmed up.

Where do you have your HVAC controls set at when you notice this?

It only does it on mine when the A/C is on or the defroster is on, if those are off then the idle is steady as a rock. This seems to be a "normal" thing for Toyotas.

MadModder · 04-05-2013, 05:22 PM

I live in Dubai. Lol. I don't even know where my defrost button is (joking). I'm not sure if ac is on or off. I will check this tomorrow.

radroach · 04-05-2013, 08:06 PM

I'm trying to figure out if I have an issue. Idle drops to 600 rpm, makes it harder to get a quick, smooth start.

03-27-2013, 12:12 AM	#52
Yruyur Senior Member Join Date: Jun 2012 Drives: Scion fr-s asphalt M/T Location: Phoenix, AZ Posts: 4,192 Thanks: 1,416 Thanked 1,631 Times in 941 Posts Mentioned: 96 Post(s) Tagged: 0 Thread(s)	Mine went away with a tune. But it is back now just as bad as before. @23k miles Sent from my SCH-I535 using Tapatalk 2 __________________

12-16-2012, 01:53 PM	#43
axelo Banned Join Date: Oct 2012 Drives: Whiteout frs Location: PR Posts: 188 Thanks: 214 Thanked 86 Times in 52 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	my car started to do the fluctuation upon 5,000miles after a long drive. This went away upon 10mins after one stop into regular traffic....changed oil at 6,000miles toyota synthetic and subaru oil filter.....no idling problems after oil change...slowly breaking in the elements of the car is to me pretty essential. It all depends on your driving and "making" the engine durable. Thus more efficient in the long run...hope this works the idling problems Thanks

12-17-2012, 09:28 PM	#44
bAS1c Member Join Date: Jul 2012 Drives: Asphalt FR-S Location: WPB, FL Posts: 42 Thanks: 0 Thanked 17 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Both of the FR-S's I've had did this, however only the second one has the crickets. Then again I only put 380mi on the first one.

12-17-2012, 11:55 PM	#45
avp1 Senior Member Join Date: Aug 2012 Drives: Traded BRZ for Supra Location: Princeton, NJ Posts: 164 Thanks: 5 Thanked 49 Times in 29 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	There is an open recall on BRZ engine computer software. At my last visit to dealer week ago new software was installed. I didn't notice any significant fluctuation at idle ever since. Idle RPM varies a little bit, but nothing like large dips I had before.

01-29-2013, 12:06 PM	#48
Allensworths Junior Member Join Date: Oct 2012 Drives: 2013 FR-S Location: Chesapeake, VA Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	I really love this forum an appreciate all of those who provide solutions, my windows just crapped out this morning and the reset resolved it. Thanks

03-26-2013, 11:12 PM	#50
Fontz_86 Member Join Date: Mar 2013 Drives: 2013 Scion FR-S Location: United States Posts: 25 Thanks: 3 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	mine does it when balancing the clutch during a stop on a hill

03-27-2013, 12:11 AM	#51
ft86me Senior Member Join Date: Feb 2013 Drives: 2013 FRS Location: Endor Posts: 1,231 Thanks: 802 Thanked 349 Times in 212 Posts Mentioned: 60 Post(s) Tagged: 1 Thread(s)	when i got my flash from @Visconti it totally fixed that issue and got improved gas mileage and gained some extra power annnnd launch control annnnnd a few other things. just my .02

04-05-2013, 03:34 PM	#53
MadModder Junior Member Join Date: Feb 2013 Drives: 2013 Toyota 86 Location: Jackson, MS Posts: 9 Thanks: 0 Thanked 4 Times in 3 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I picked up my hot lava manual 86 last week. I noticed my car did that with less than 500km and figured it was just bc it was not broken in. Now with 1600km on it, it still does it. At red lights it will idle for a sec at 600 rpm them drop a bit and immediately catch itself and blip to around 1000-1100. Also recently noticed a, for lack of better description, misfire kind of shake at idle but only when warmed up.

04-05-2013, 05:22 PM	#55
MadModder Junior Member Join Date: Feb 2013 Drives: 2013 Toyota 86 Location: Jackson, MS Posts: 9 Thanks: 0 Thanked 4 Times in 3 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I live in Dubai. Lol. I don't even know where my defrost button is (joking). I'm not sure if ac is on or off. I will check this tomorrow.

04-05-2013, 08:06 PM	#56
radroach Senior Member Join Date: Feb 2013 Drives: car Location: usa Posts: 2,162 Thanks: 1,028 Thanked 867 Times in 530 Posts Mentioned: 35 Post(s) Tagged: 1 Thread(s)	I'm trying to figure out if I have an issue. Idle drops to 600 rpm, makes it harder to get a quick, smooth start.

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