Rpm drop at idle - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

19eightysix · 03-05-2015, 07:18 PM

Just got my frs last week it's a 2013 with 44xxxkms it has an injen intake. I was going through the service records and it had thrown a check engine code. Toyota said it was because of the intake. Car runs great with no issues, except when I stop occasionally the rpm will drop to around 500rpm then bounce back up. Would the intake be the culprit?

My car is headed in next week to get an ecutek tune. So if the intake is the problem we can fix it with tuning. I'm not 100% familiar with boxer motors just don't want it to end up being something should get warrantied before I void the warranty

Bobblehead · 03-05-2015, 07:25 PM

http://www.ft86club.com/forums/showthread.php?t=21868
See: TSB # S-SB-0040-13

Its the second sticky at the top of this very sub-forum.

Your Injen Intake will not cause any idle issues. The code was most likely a MAF sensor code from the car running too lean, or the installer forgetting to plug in the sensor after install.

19eightysix · 03-05-2015, 07:56 PM

I'm in Canada will the tsb be the same? Much thanks for the link

PMPB · 03-05-2015, 08:04 PM

The idle is 600, and RPM drops to 500 momentarily when the AC compressor kicks in.

Bobblehead · 03-05-2015, 08:18 PM

Quote:

Originally Posted by 19eightysix

I'm in Canada will the tsb be the same? Much thanks for the link

It should be. I don't know for sure though.

If you're getting an ECUTek tune, I wouldn't even worry about going to the dealer to get it fixed. AFAIK, the only fix they perform is an ECU reflash.

BRZnut · 03-05-2015, 08:47 PM

Quote:

Originally Posted by 19eightysix

Just got my frs last week it's a 2013 with 44xxxkms it has an injen intake. I was going through the service records and it had thrown a check engine code. Toyota said it was because of the intake. Car runs great with no issues, except when I stop occasionally the rpm will drop to around 500rpm then bounce back up. Would the intake be the culprit?

My car is headed in next week to get an ecutek tune. So if the intake is the problem we can fix it with tuning. I'm not 100% familiar with boxer motors just don't want it to end up being something should get warrantied before I void the warranty

My 2013 is stock and has done that from day one. During quick stops the RPMs will drop from 700 to 550 as I come to the stop , but then quickly go up to 700 (but never stalls)

Lelantas · 03-05-2015, 11:54 PM

Quote:

Originally Posted by BRZnut

My 2013 is stock and has done that from day one. During quick stops the RPMs will drop from 700 to 550 as I come to the stop , but then quickly go up to 700 (but never stalls)

Same on my 2015 BRZ MT. I'm fairly sure that's normal behavior on many cars, as that's also the case on my 2000 Camry.

continuecrushing · 03-05-2015, 11:58 PM

pick up an OFT and flash the car...problem solved without going to the dealer and having them mess something up more

The car runs SO much smoother after oft, even if I didn't have mods I would still flash one of the base tunes just to get injector seal fix, idle and others...

Sugi · 03-06-2015, 01:03 AM

Mine performs this, but when at a dead stop and it will continue to do it.

Here is my post that I started to help solve this issue

http://www.ft86club.com/forums/showthread.php?t=83160

chaoskaze · 03-06-2015, 09:16 PM

My car does this when AC is on & summer is here soon. But I don't think there is a fix?

Tcoat · 03-06-2015, 09:37 PM

Quote:

Originally Posted by chaoskaze

My car does this when AC is on & summer is here soon. But I don't think there is a fix?

Not for the compressor related drop there isn't. Just nature of the beast with any smaller displacement engine and AC not a problem.

chaoskaze · 03-06-2015, 10:03 PM

But it's not like it only drops when compressor kick-in thou. It just goes on and off nonstop + My other 4cylinder (RAV4 & CRV) car don't do this.

But I know it's probably just how it is, just worried.

03-05-2015, 07:18 PM	#1
19eightysix Member Join Date: Feb 2015 Drives: Ae86 Location: Canada Posts: 10 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Rpm drop at idle Just got my frs last week it's a 2013 with 44xxxkms it has an injen intake. I was going through the service records and it had thrown a check engine code. Toyota said it was because of the intake. Car runs great with no issues, except when I stop occasionally the rpm will drop to around 500rpm then bounce back up. Would the intake be the culprit? My car is headed in next week to get an ecutek tune. So if the intake is the problem we can fix it with tuning. I'm not 100% familiar with boxer motors just don't want it to end up being something should get warrantied before I void the warranty

03-05-2015, 07:25 PM	#2
Bobblehead Senior Member Join Date: Mar 2014 Drives: 2013 BRZ (gone) 2016 Ford Fusion SE Location: Western PA Posts: 602 Thanks: 522 Thanked 494 Times in 223 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	http://www.ft86club.com/forums/showthread.php?t=21868 See: TSB # S-SB-0040-13 Its the second sticky at the top of this very sub-forum. Your Injen Intake will not cause any idle issues. The code was most likely a MAF sensor code from the car running too lean, or the installer forgetting to plug in the sensor after install. __________________

03-06-2015, 09:16 PM	#10
chaoskaze The Fail Boat Join Date: Aug 2011 Drives: CWP S.B. Location: LasVegas Posts: 3,028 Thanks: 4,720 Thanked 1,294 Times in 874 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	Rpm drop at idle My car does this when AC is on & summer is here soon. But I don't think there is a fix?

03-06-2015, 10:03 PM	#12
chaoskaze The Fail Boat Join Date: Aug 2011 Drives: CWP S.B. Location: LasVegas Posts: 3,028 Thanks: 4,720 Thanked 1,294 Times in 874 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	Rpm drop at idle But it's not like it only drops when compressor kick-in thou. It just goes on and off nonstop + My other 4cylinder (RAV4 & CRV) car don't do this. But I know it's probably just how it is, just worried.

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03-05-2015, 07:56 PM	#3
19eightysix Member Join Date: Feb 2015 Drives: Ae86 Location: Canada Posts: 10 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'm in Canada will the tsb be the same? Much thanks for the link

03-05-2015, 08:04 PM	#4
PMPB Senior Member Join Date: May 2013 Drives: BRZ Sport-tech Location: Canada Posts: 347 Thanks: 77 Thanked 182 Times in 111 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The idle is 600, and RPM drops to 500 momentarily when the AC compressor kicks in.

03-05-2015, 11:58 PM	#8
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s) Tagged: 2 Thread(s)	pick up an OFT and flash the car...problem solved without going to the dealer and having them mess something up more The car runs SO much smoother after oft, even if I didn't have mods I would still flash one of the base tunes just to get injector seal fix, idle and others...

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