RPM fluctuation.....

[Tcoat]

Originally Posted by AsianStyle

So, this new TSB only affects 2015-2016 models? What did they change from the 2013-2014 that the old fixes don't work for them?

Seems odd to have a new fix on an old issue for a newer subset of cars, when they haven't changed anything to the engine.

I guess us guys with 14s are screwed for both TSBs!

[Sigh-on-Rice]

Originally Posted by AsianStyle

So, this new TSB only affects 2015-2016 models? What did they change from the 2013-2014 that the old fixes don't work for them?

Seems odd to have a new fix on an old issue for a newer subset of cars, when they haven't changed anything to the engine.

This issue is different from the old issue.
This new one for 2015-2016 has something to do with Transmission Control Module (TCM).

[Packofcrows]

Originally Posted by AsianStyle

So, this new TSB only affects 2015-2016 models? What did they change from the 2013-2014 that the old fixes don't work for them?

Seems odd to have a new fix on an old issue for a newer subset of cars, when they haven't changed anything to the engine.

I printed out TSB from 2013 and took it to techy. He flashed it for me free! It's less common on 2014.

[FRSBRZGT86FAN]

Originally Posted by Sigh-on-Rice

This issue is different from the old issue.
This new one for 2015-2016 has something to do with traction control.

I think you mean transmission control module, because the issue exists on my car after the transmission starts to shift unusually as is the case with a few other members with AT 2015s

[Sigh-on-Rice]

Originally Posted by FRSBRZGT86FAN

I think you mean transmission control module, because the issue exists on my car after the transmission starts to shift unusually as is the case with a few other members with AT 2015s

Yes, you're right I corrected my post above.

[AsianStyle]

Originally Posted by Sigh-on-Rice

Yes, you're right I corrected my post above.

So the new 2015 issue only affects automatic cars?

[Sigh-on-Rice]

Originally Posted by AsianStyle

So the new 2015 issue only affects automatic cars?

Yes, on the TSB that was just posted on the TSB thread, it specifically list "A/T" as drivetrain.

[TougeSlide]

repost from "unofficial rpm thread"

there are two videos contained here. My experience as of today.......

TougeSlide, 2015 FR-S, 4,560 miles, 7092xx, 2 weeks without car so far. 3 repair attempts. Orlando Florida

I bought my car 3/5/15 with 6 miles on it from Central Florida Toyota

I started experiencing the rough idle with less than 2k miles on the car.

The CEL and SL came on for the first time at 4,560 miles on 9/6/15
Started taking car to Toyota of Orlando Dealer
Codes :P000A and C1201

Dealer placed me in rental from 9/7/15 to 9/8/15
Codes :P000A and C1201
Swapped intake OCV valve bank 1 and road test 15 miles
Stated they could not recreate the idle hunting issue
Stated the fuel pump chirp is a "characteristic" of the FRS

CEL and SL came on the second time on 9/15/15
I was recording video of the idle hunting when the lights came back on. Showed to dealer.
4,809 miles

Placed in rental car from 9/15/15 to 9/17/15
Codes: P000C
Replaced OCV bank 2 VVTI

Cel and SL came on for the 3rd time 2 days later, 9/19/15
4,926 miles
I was recording video of the idle hunting again when this happened

Took the car to dealer again today, was placed in rental car 9/20/15
Am dealing with Managers at this point. Sending certified mail to Toyota tomorrow to start the Lemon Law process.


9/22 - Called Toyota customer service. They are aware of the situation. A representative is suppose to contact me in 24 hours.

Sent lemon law paperwork to manufacturer.

9/23 - car still at the dealer, was told they are replacing the bank 1 cam gear. Waiting on parts. Should have been in yesterday but they still have not arrived.
dealer just called and asked if their tech could drive it home for the night to try and re create the issue. They are swapping OCV valves again. Cam gear on back order.

Later same day, contacted by David at the Corporate office. Offered me extended warranty. Told him I do not trust the car or it's internals and that Lemon Law paper work has been started. He said he understood and wanted to make things right and was sorry for the situation. Said he was going to "make some calls and light some fires" and that he was going to get regional involved.

9/24 - no contact whatsoever. Called Dealer and Corporate office, no one is "able to take my call"

9/25 - Dealer finally called back. They told me the cam gear should be in the car tonight, but they want to keep it another two days to check it and make sure everything is ok.......

no one has addressed compensation or the lemon law...

9/28 - no word from the dealer or from Toyota since the 25th.

same day. Called Toyota, Case worker on phone. Called me back, said he was in touch with the dealership. Dealership still has not replaced cam gear. Manager out until Wednesday (9/30). Asked specifically if they had received my lemon law paperwork, he said he does not deal with that but can get the case started. I asked him to proceed. He said I would get an "acknowledgement letter" within 7 to 10 business days, then they would start a review that would take up to 30 days.

LOOKS LIKE I'M OUT ANOTHER MONTH!!!!!

9/29 - Dealership manager finally contacted me. Asked me to authorize extended road test, let the tech drive it home again. I said I was uncomfortable the first time, and asked:
What is his driving record? - "clean, techs can't have more than one ticket"
How far is the car being driven? - "round trip about 40 miles"
Will it be garage kept? - "no, kept in a driveway at a private residence"
Who's insurance does this fall under? - "Ours (the dealers)"

I expressed my concerns over being without the car so long, the internal engine failure, and everything listed above, his only response was "understood"

9/30 - No Contact from Dealer or Toyota. I called the Manager in the afternoon. He said he didn't know where the car was, and asked to call me back. When he did he said all should be well, but Toyota wants to take if for another drive. He said he would call back in an hour.

He didn't

I called back 3 and a half hours later. 3 times. I finally got ahold of him. he said the car was done, but couldn't tell me what had happened.

Now the best part.

His tech that took my car home took toll roads. He didn't pay them. Now I have 4 tickets on the way.


Going in to pick up my vehicle tomorrow.

Toyota corporate still not in contact. Was told today that my case has been escalated as high as it can go.

Days without car as of 9/30/15 = 15

[lancie]

Originally Posted by arvidj

I would like to thank the experts on this forum who provided well reasoned comments on the the issue ...













On the other hand, those of you who are experiencing this "not really happening, not an issue, it's all in your mind, it's normal" issue please visit your Scion dealer and ask them to review ...

Technical Bulletin S-SB-0021-15, issued September 17, 2015, Idle Fluctuation in Park or Neutral.

Applicability: 2015-2016 FR-S

Introduction: Some 2015-2016 model year FR-S vehicles may exhibit a condition where the engine idle speed fluctuates (typically 500 - 1000 RPM) only when the transmission is in the Park or Neutral shift position. This condition occurs after the vehicle has been driven about 25 miles or more at highway speeds. The Transmission Control Module (TCM) logic has been revised to address this condition.

I had the TCM software upgraded yesterday ... about an hour at the dealer total time ... and the idle is now rock solid.

i have same issue but my Brz (m.y. 2015) is manual.

[GotBRZ1691]

So i noticed that my BRZ has just started doing this. I started the car in the drive and let it come up to temp. Once the rpms dropped to idle, i noticed it was idle hunting continuously, from 600rpm to 900rpm. Additionally, I hear a rattle when apply slight throttle to bring the car up 200/300 rpms, from 600rpm.

Is this rattle potentially because the car wants to stall? Or should I get it looked at.

Im going to post a video this afternoon as I think my engine is more clicky and rattley, but that may just been paranoia getting to me.

Current mods include K&N intake, Perrin Cat back, Perrin LWCP, Stock tune.

[Tcoat]

Originally Posted by arvidj

Technical Bulletin S-SB-0021-15, issued September 17, 2015, Idle Fluctuation in Park or Neutral.

Applicability: 2015-2016 FR-S

Introduction: Some 2015-2016 model year FR-S vehicles may exhibit a condition where the engine idle speed fluctuates (typically 500 - 1000 RPM) only when the transmission is in the Park or Neutral shift position. This condition occurs after the vehicle has been driven about 25 miles or more at highway speeds. The Transmission Control Module (TCM) logic has been revised to address this condition.

I had the TCM software upgraded yesterday ... about an hour at the dealer total time ... and the idle is now rock solid.

Originally Posted by Sigh-on-Rice

Yes, on the TSB that was just posted on the TSB thread, it specifically list "A/T" as drivetrain.

Originally Posted by GotBRZ1691

So i noticed that my BRZ has just started doing this. I started the car in the drive and let it come up to temp. Once the rpms dropped to idle, i noticed it was idle hunting continuously, from 600rpm to 900rpm. Additionally, I hear a rattle when apply slight throttle to bring the car up 200/300 rpms, from 600rpm.

Is this rattle potentially because the car wants to stall? Or should I get it looked at.

Im going to post a video this afternoon as I think my engine is more clicky and rattley, but that may just been paranoia getting to me.

Current mods include K&N intake, Perrin Cat back, Perrin LWCP, Stock tune.

Take it in.

[GotBRZ1691]

Originally Posted by Tcoat

Take it in.

My car is a manual, 36,XXX miles, 2014.

Have some videos I will shorten and post.

Going to go start the car for the first time today and see what happens.

[Tcoat]

Originally Posted by GotBRZ1691

My car is a manual, 36,XXX miles, 2014.

Have some videos I will shorten and post.

Going to go start the car for the first time today and see what happens.

Oh sorry! I thought it was an auto. My 14 manual has never done that at start up. I have had a couple of isolated cases where I have come in off a long run on the highway where it would hunt for a couple of minutes at lights but it has always cleared up and they were months apart.

[GotBRZ1691]

Originally Posted by Tcoat

Oh sorry! I thought it was an auto. My 14 manual has never done that at start up. I have had a couple of isolated cases where I have come in off a long run on the highway where it would hunt for a couple of minutes at lights but it has always cleared up and they were months apart.

Did it again this morning. I think the noise im hearing is just the engine bogging down and wanting to stall. Is 600rpm to low of an idle? I want to say yes but am not sure.

I took another video. I have a new laptop so ill download a video editing app so i can post a quick vid here. Will be going to the dealership at some point today