AT frs rpm issue - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ricebox · 12-30-2015, 04:17 PM

When you tap and let go of the throttle lightly, is it normal to see a drop in the rpm (below 500) and then slowly rising depending on how much you throttle you tapped? Is anyone else experiencing this issue?

soulreapersteve · 12-30-2015, 08:08 PM

Ive experienced this. I don't think its an issue per say... but I would think there are more knowledgeable people than myself that could say yes or no.

go_a_way1 · 12-30-2015, 09:26 PM

If I recall right mine does this but nothing to worry about its just the timing changing (well my guess)

ricebox · 12-30-2015, 11:25 PM

@soulreapersteve @go_a_way1 Glad I'm not the only one but it's more noticeable when you are in P, N or accelerating from a complete stop. The weird thing is if you're in sports mode the problem goes away.

go_a_way1 · 12-30-2015, 11:29 PM

Quote:

Originally Posted by ricebox

@soulreapersteve @go_a_way1 Glad I'm not the only one but it's more noticeable when you are in P, N or accelerating from a complete stop. The weird thing is if you're in sports mode the problem goes away.

Only really happens when in N or P I always give it too much gas off the line to notice haha! It could also be the tranny moving the fluid around and probably has to do with the torque converter is another guess as to what it could be haha!

soulreapersteve · 12-31-2015, 12:25 AM

Quote:

Originally Posted by go_a_way1

Only really happens when in N or P I always give it too much gas off the line to notice haha! It could also be the tranny moving the fluid around and probably has to do with the torque converter is another guess as to what it could be haha!

Was thinking this originally but didn't want to say anything since I know jack shit...

FRSBRZGT86FAN · 12-31-2015, 02:49 AM

Quote:

Originally Posted by ricebox

@soulreapersteve @go_a_way1 Glad I'm not the only one but it's more noticeable when you are in P, N or accelerating from a complete stop. The weird thing is if you're in sports mode the problem goes away.

What year is your car if you don't mind me asking?

ricebox · 12-31-2015, 10:54 AM

@FRSBRZGT86FAN Does this happen in your 2015 frs?

I drive a 2013 and according to @go_a_way1 status it looks like he has a 2013 too.

go_a_way1 · 12-31-2015, 11:27 AM

Quote:

Originally Posted by ricebox

@FRSBRZGT86FAN Does this happen in your 2015 frs?

I drive a 2013 and according to @go_a_way1 status it looks like he has a 2013 too.

Yup I have a 13

It has done that idle dip thing since she was brand new. I have also had all the updates done but I am also ECU Tek tuned so that might overwrite the update changes

Sigh-on-Rice · 12-31-2015, 03:24 PM

Mine is '13 MT and I notice it does this sometimes. When it does it, it keeps doing it. But when it doesn't, I can't recreate it no matter how many times I try. I've never worried about this, so I didn't mention this in this forum or to the dealer.

FRSBRZGT86FAN · 12-31-2015, 04:18 PM

Quote:

Originally Posted by ricebox

@FRSBRZGT86FAN Does this happen in your 2015 frs?

I drive a 2013 and according to @go_a_way1 status it looks like he has a 2013 too.

It used to when I first got it, however now after a TSB with a TCM logic reflash and with an OFT tune I've edited a lot I don't really notice it at all

phrosty · 12-31-2015, 05:33 PM

Now that there's a TCM flash TSB, I wonder if any tuners can find out how to do that.

go_a_way1 · 12-31-2015, 05:40 PM

Quote:

Originally Posted by phrosty

Now that there's a TCM flash TSB, I wonder if any tuners can find out how to do that.

I thought that was only for the 15s?

phrosty · 12-31-2015, 06:50 PM

Quote:

Originally Posted by go_a_way1

I thought that was only for the 15s?

Highly doubt the 15s have a different TCM than us.

12-30-2015, 04:17 PM	#1
ricebox Member Join Date: Mar 2014 Drives: AE86 & GT86 Location: USA Posts: 64 Thanks: 10 Thanked 8 Times in 7 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	AT frs rpm issue When you tap and let go of the throttle lightly, is it normal to see a drop in the rpm (below 500) and then slowly rising depending on how much you throttle you tapped? Is anyone else experiencing this issue?

12-31-2015, 05:33 PM	#12
phrosty Senior Member Join Date: Apr 2013 Drives: 2013 FR-S Location: Seattle Posts: 806 Thanks: 202 Thanked 321 Times in 199 Posts Mentioned: 18 Post(s) Tagged: 1 Thread(s)	Now that there's a TCM flash TSB, I wonder if any tuners can find out how to do that. __________________ 2013 Whiteout 6AT FR-S \| Perrin Inlet Tube + 2.75" CAI \| OpenFlash Header \| P&L Catback \| 4.88 Final Drive \| Dialed in OFT 2.0x Stage 2 E85 \| 18x8 Enkei Raijin + 225/40 Michelin Pilot Super Sport \| 17x7 Stock + 215/45 Michelin X-Ice Xi-2

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12-30-2015, 11:25 PM	#4
ricebox Member Join Date: Mar 2014 Drives: AE86 & GT86 Location: USA Posts: 64 Thanks: 10 Thanked 8 Times in 7 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	@soulreapersteve @go_a_way1 Glad I'm not the only one but it's more noticeable when you are in P, N or accelerating from a complete stop. The weird thing is if you're in sports mode the problem goes away.

12-31-2015, 10:54 AM	#8
ricebox Member Join Date: Mar 2014 Drives: AE86 & GT86 Location: USA Posts: 64 Thanks: 10 Thanked 8 Times in 7 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	@FRSBRZGT86FAN Does this happen in your 2015 frs? I drive a 2013 and according to @go_a_way1 status it looks like he has a 2013 too.

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