Power lag in 2nd gear. Sporadic revs at idle - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Norinradd · 06-05-2016, 11:47 PM

Just got the car. 30,000km. 12,000 miles or so. My idle bounces all over the place especially when cold. From 200-1500. Also everytime i shift to 2nd no matter what rpm im at it lags so bad. Like it struggles miserably for 2 seconds then kicks it. Kinda ruins the experience. Anybody know if these are recalls or issues the dealer can fix for free? Reprog the ecu or something?

turtlefeeder · 06-06-2016, 04:24 AM

First thing I'd try is disconnecting batteries over night, let it relearn. If issue so persist get or borrow an obd2 reader and diagnose the car. Still not working? Send it to an auto shop for (maybe free if theyfeel like taking a quick look) estimate/check (if you want to know for sure the problem, send to toyota they'll be more than happy to take your money).

I've seen something similar too this, if the car was mod than returned to shock to sell and they forgot to reflash to stock tune, engine will have a hard time.. such as your issue, from what you're saying it looks like it's in loop mode. BTW I doubt it's a defect, just saying..

jarnojvv · 06-06-2016, 05:18 AM

Quote:

Originally Posted by Norinradd

Just got the car. 30,000km. 12,000 miles or so. My idle bounces all over the place especially when cold. From 200-1500. Also everytime i shift to 2nd no matter what rpm im at it lags so bad. Like it struggles miserably for 2 seconds then kicks it. Kinda ruins the experience. Anybody know if these are recalls or issues the dealer can fix for free? Reprog the ecu or something?

Warrantee?

take it to the dealer.

Ashikabi · 06-06-2016, 11:56 AM

Take it to the dealer. This is what warranty is for

Summerwolf · 06-06-2016, 12:19 PM

The lag sounds like torque dip. LOL

Maybe JK.

strat61caster · 06-06-2016, 05:32 PM

Sounds like shitty mawds, a dirty air filter or throttle body, a clogged or busted line somewhere, maybe even a DI seal failure. Could be anything. If you don't know how to check for those things a trip to the dealership it will have to be, good luck.

Norinradd · 06-06-2016, 07:58 PM

Bahah. Not the torque dip no. Its just when im initially in second gear. As if the gear slips a bit then catches. The car hasnt had an aftermarket tune. And yeah i can do it all myself. But everything looks good. Ive read on other pages the issue and there was apparently a dealer re flash. Not a recall but they recognize the issue and re programmed it to fix.

ryoma · 06-06-2016, 08:12 PM

if the idle RPM jumps around, you might have air pockets in your cooling system. try bleeding it and see if it helps.

Speed2th · 06-06-2016, 08:33 PM

Did you buy used car? I would start with checking the MAF sensor from the intake, and all intake pipe connection for leak. Also check the intake box and element, maybe you have some foreign element in there.

Packofcrows · 06-07-2016, 05:13 PM

If you remove maf sensor wear gloves. Many members somehow have messed theirs up.

Clean throttle and check intake. Tighten it up.

Norinradd · 06-08-2016, 12:16 AM

Yes its used. Aftermarket intake, headers and exhaust. So the dealer was aware of the issue and apparently there is some new software for the rough idle. They downloaded it. Havent stallled since but its still odd. Ill check alll the intake connections. Believe i have some sensor cleaner at home too.

turtlefeeder · 06-08-2016, 12:18 AM

Problem solve Ned a retune lol probably that header

Norinradd · 06-08-2016, 01:52 AM

Yah always i have read that injen air intakes cause a sputtery idle and stalling 50% of the time, whn not ran with a tune. Any recommended tunes? Is it cheaper to buy plug and play or go to a tuner shop

turtlefeeder · 06-08-2016, 02:02 AM

Nuuu Nuuu nu its not the intake lol. I'm running injen CAI right now with a cat back no issues from that because i keep factory header, planning to go with Works turbocharger soon than I'll get their ecu tuning. The issue is you have an aftermarket/performance header which increase air flow in your engine, it's more air than the ECU can know what to do with so it tries to compensate by throwing in more gas. So you idle roughly and power isn't constant on the throttle.

Factory header =Factory tune so it does what is intended to do, but aftermarket header+ factory tune= more than ecu can handle in factory spec. Like getting alignment after you swap for aftermarket coilovers, new item needs new setting to make it run normal or better
Hope this explanation put tuning into prospective

There's many tuner check it out via Google 😊 after tuning it soul is run Nuuu problem

06-05-2016, 11:47 PM	#1
Norinradd Senior Member Join Date: May 2016 Drives: 2013 frs Location: British columbia Posts: 313 Thanks: 107 Thanked 19 Times in 16 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Power lag in 2nd gear. Sporadic revs at idle Just got the car. 30,000km. 12,000 miles or so. My idle bounces all over the place especially when cold. From 200-1500. Also everytime i shift to 2nd no matter what rpm im at it lags so bad. Like it struggles miserably for 2 seconds then kicks it. Kinda ruins the experience. Anybody know if these are recalls or issues the dealer can fix for free? Reprog the ecu or something?

06-06-2016, 08:12 PM	#8
ryoma Senior Member Join Date: Mar 2015 Drives: 2015 Subaru BRZ Limited CWP Location: SoCal Posts: 1,561 Thanks: 34 Thanked 669 Times in 469 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	if the idle RPM jumps around, you might have air pockets in your cooling system. try bleeding it and see if it helps. __________________ My 2015 CWP BRZ Build

06-07-2016, 05:13 PM	#10
Packofcrows hey you, yeah you <3 Join Date: Jul 2012 Drives: 2014 37J FR-S Location: Monterey County, CA Posts: 2,715 Thanks: 905 Thanked 1,259 Times in 809 Posts Mentioned: 38 Post(s) Tagged: 3 Thread(s)	If you remove maf sensor wear gloves. Many members somehow have messed theirs up. Clean throttle and check intake. Tighten it up. __________________ Got my TRD wheels and TRD louvers. Thanks!!!

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06-06-2016, 04:24 AM	#2
turtlefeeder Senior Member Join Date: Apr 2016 Drives: UltraMFrS Location: OC Posts: 701 Thanks: 204 Thanked 135 Times in 100 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	First thing I'd try is disconnecting batteries over night, let it relearn. If issue so persist get or borrow an obd2 reader and diagnose the car. Still not working? Send it to an auto shop for (maybe free if theyfeel like taking a quick look) estimate/check (if you want to know for sure the problem, send to toyota they'll be more than happy to take your money). I've seen something similar too this, if the car was mod than returned to shock to sell and they forgot to reflash to stock tune, engine will have a hard time.. such as your issue, from what you're saying it looks like it's in loop mode. BTW I doubt it's a defect, just saying..

06-06-2016, 11:56 AM	#4
Ashikabi Senior Member Join Date: Aug 2014 Drives: 2013 FR-S Location: Northwest Iowa Posts: 7,359 Thanks: 454 Thanked 4,549 Times in 2,950 Posts Mentioned: 59 Post(s) Tagged: 5 Thread(s)	Take it to the dealer. This is what warranty is for

06-06-2016, 12:19 PM	#5
Summerwolf Panda Trueno Join Date: Jan 2015 Drives: No twin now. Location: North Indiana Posts: 3,349 Thanks: 2,113 Thanked 2,409 Times in 1,332 Posts Mentioned: 17 Post(s) Tagged: 2 Thread(s)	The lag sounds like torque dip. LOL Maybe JK.

06-06-2016, 07:58 PM	#7
Norinradd Senior Member Join Date: May 2016 Drives: 2013 frs Location: British columbia Posts: 313 Thanks: 107 Thanked 19 Times in 16 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Bahah. Not the torque dip no. Its just when im initially in second gear. As if the gear slips a bit then catches. The car hasnt had an aftermarket tune. And yeah i can do it all myself. But everything looks good. Ive read on other pages the issue and there was apparently a dealer re flash. Not a recall but they recognize the issue and re programmed it to fix.

06-08-2016, 12:16 AM	#11
Norinradd Senior Member Join Date: May 2016 Drives: 2013 frs Location: British columbia Posts: 313 Thanks: 107 Thanked 19 Times in 16 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Yes its used. Aftermarket intake, headers and exhaust. So the dealer was aware of the issue and apparently there is some new software for the rough idle. They downloaded it. Havent stallled since but its still odd. Ill check alll the intake connections. Believe i have some sensor cleaner at home too.

06-08-2016, 12:18 AM	#12
turtlefeeder Senior Member Join Date: Apr 2016 Drives: UltraMFrS Location: OC Posts: 701 Thanks: 204 Thanked 135 Times in 100 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Problem solve Ned a retune lol probably that header

06-08-2016, 01:52 AM	#13
Norinradd Senior Member Join Date: May 2016 Drives: 2013 frs Location: British columbia Posts: 313 Thanks: 107 Thanked 19 Times in 16 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Yah always i have read that injen air intakes cause a sputtery idle and stalling 50% of the time, whn not ran with a tune. Any recommended tunes? Is it cheaper to buy plug and play or go to a tuner shop

06-08-2016, 02:02 AM	#14
turtlefeeder Senior Member Join Date: Apr 2016 Drives: UltraMFrS Location: OC Posts: 701 Thanks: 204 Thanked 135 Times in 100 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Nuuu Nuuu nu its not the intake lol. I'm running injen CAI right now with a cat back no issues from that because i keep factory header, planning to go with Works turbocharger soon than I'll get their ecu tuning. The issue is you have an aftermarket/performance header which increase air flow in your engine, it's more air than the ECU can know what to do with so it tries to compensate by throwing in more gas. So you idle roughly and power isn't constant on the throttle. Factory header =Factory tune so it does what is intended to do, but aftermarket header+ factory tune= more than ecu can handle in factory spec. Like getting alignment after you swap for aftermarket coilovers, new item needs new setting to make it run normal or better Hope this explanation put tuning into prospective There's many tuner check it out via Google 😊 after tuning it soul is run Nuuu problem

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