Auto Shifting in Manual Mode - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

phantasticity · 06-14-2016, 05:07 PM

So I just received the lovely engine check light on my A/T FR-S, and whenever I'm in manual mode, it's auto shifting at around 7,100 rpm. Anybody know the reason why or how to fix it?

Thank You,

FirestormFRS · 06-14-2016, 05:30 PM

CEL disables a lot of stuff, may include flappy paddles.

Tectoniic · 06-14-2016, 05:39 PM

You need to find out what is actually causing your CEL first.....

Either get your own code reader or see if your local auto parts shop will let you use theirs. Once you know what the code is it will be a lot easier to fix the problem.....

Just to eliminate the possibility, are you sure that you did not set your rev limiter at 7,100? That might force it to upshift on you even with 100% throttle in manual mode. Probably not a good idea to keep revving it up to 7,100 while you have a CEL as well.....

phantasticity · 06-14-2016, 06:00 PM

Quote:

Originally Posted by Tectoniic

You need to find out what is actually causing your CEL first.....

Either get your own code reader or see if your local auto parts shop will let you use theirs. Once you know what the code is it will be a lot easier to fix the problem.....

Just to eliminate the possibility, are you sure that you did not set your rev limiter at 7,100? That might force it to upshift on you even with 100% throttle in manual mode. Probably not a good idea to keep revving it up to 7,100 while you have a CEL as well.....

I reset the battery last night, and the CEL was gone, but after driving for about 15 miles this morning it came back again. It's just really weird because my car is an A/T but when I'm in Manual it reacts like its in A/T and just auto shifts instead.

Tectoniic · 06-14-2016, 06:05 PM

Quote:

Originally Posted by phantasticity

I reset the battery last night, and the CEL was gone, but after driving for about 15 miles this morning it came back again. It's just really weird because my car is an A/T but when I'm in Manual it reacts like its in A/T and just auto shifts instead.

Anytime you disconnect the battery it will probably clear those CEL codes. When the light shows back up again after it was cleared you have some type of problem.

You and us need to know what code you have so we can try to help. A CEL can pop up from so many different things ranging from your gas cap not being tightened to a rod punching a nice hole in your block. Once you have the code google it as someone has most likely ran into it before and you will probably find out if it is something trivial or something you should be concerned about

EDIT: To somewhat amend my earlier post: I have an A/T as well. Even if you set the rev limiter it will just bounce off of it and jerk the car in manual mode so it should not be auto shifting.

brianhj · 06-14-2016, 07:22 PM

Quote:

Originally Posted by phantasticity

I reset the battery last night, and the CEL was gone, but after driving for about 15 miles this morning it came back again. It's just really weird because my car is an A/T but when I'm in Manual it reacts like its in A/T and just auto shifts instead.

Go to autozone, they will tell you the code for free. Then tell us the code. Or google the code.

phantasticity · 06-14-2016, 07:53 PM

Quote:

Originally Posted by brianhj

Go to autozone, they will tell you the code for free. Then tell us the code. Or google the code.

I just bought an OBDII scanner, and the code is P0171

phantasticity · 06-14-2016, 07:59 PM

Quote:

Originally Posted by Tectoniic

Anytime you disconnect the battery it will probably clear those CEL codes. When the light shows back up again after it was cleared you have some type of problem.

You and us need to know what code you have so we can try to help. A CEL can pop up from so many different things ranging from your gas cap not being tightened to a rod punching a nice hole in your block. Once you have the code google it as someone has most likely ran into it before and you will probably find out if it is something trivial or something you should be concerned about

EDIT: To somewhat amend my earlier post: I have an A/T as well. Even if you set the rev limiter it will just bounce off of it and jerk the car in manual mode so it should not be auto shifting.

Code is P0171, also checked my intakes, everything is very tight, so nothing is loosening.

gramicci101 · 06-14-2016, 07:59 PM

P0171 is running lean. Do you have any mods on your car such as header, tune, or intake?

phantasticity · 06-14-2016, 09:13 PM

Quote:

Originally Posted by gramicci101

P0171 is running lean. Do you have any mods on your car such as header, tune, or intake?

I fixed it, one of the tiny hose from my intake was leaking I didn't even see it lol.

Thanks for all the helps guys.

lizbrayan · 06-16-2016, 03:37 AM

Not to rob the thread but i also have a a/t and when im in manual mode and have the vsc sport on and hit heavy traffic i get a code(dont remeber which one) but its for the cam shaft positioning sensor or something along those lines

Sent from my SGH-T999N using Tapatalk

Cole · 06-16-2016, 08:16 AM

Quote:

Originally Posted by lizbrayan

Not to rob the thread but i also have a a/t and when im in manual mode and have the vsc sport on and hit heavy traffic i get a code(dont remeber which one) but its for the cam shaft positioning sensor or something along those lines

Sent from my SGH-T999N using Tapatalk

Time for a part out

Teseo · 06-16-2016, 09:39 AM

Quote:

Originally Posted by Cole

Time for a part out

Dibs

soulreapersteve · 06-16-2016, 09:45 AM

Quote:

Originally Posted by Teseo

Dibs

On the tires.

06-14-2016, 05:07 PM	#1
phantasticity Ricer Join Date: Aug 2015 Drives: FR-S Location: NorCal Posts: 125 Thanks: 4 Thanked 14 Times in 12 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Auto Shifting in Manual Mode So I just received the lovely engine check light on my A/T FR-S, and whenever I'm in manual mode, it's auto shifting at around 7,100 rpm. Anybody know the reason why or how to fix it? Thank You, Last edited by phantasticity; 06-14-2016 at 05:54 PM.

06-14-2016, 05:39 PM	#3
Tectoniic #FiftyShadesOfBlue Join Date: Apr 2015 Drives: 2015 FR-S Location: Chicago Posts: 1,195 Thanks: 2,086 Thanked 1,425 Times in 730 Posts Mentioned: 13 Post(s) Tagged: 4 Thread(s)	You need to find out what is actually causing your CEL first..... Either get your own code reader or see if your local auto parts shop will let you use theirs. Once you know what the code is it will be a lot easier to fix the problem..... Just to eliminate the possibility, are you sure that you did not set your rev limiter at 7,100? That might force it to upshift on you even with 100% throttle in manual mode. Probably not a good idea to keep revving it up to 7,100 while you have a CEL as well..... __________________ Engine/Exhaust: OFT w/ E85 Tune \| FT86SF Catted UEL \| Invidia Q300 Catback Wheels/Tires/Suspension: Avid.1 AV-20 18x8.5 +33 w/ 245/35/18 PSS \| RCE Yellow Springs \| Velox LCAs Cosmetic: Valenti FT86SF Special Edition Tails \| Diode Dynamics Full HID/LEDs \| BRZ Fender Garnishes

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06-14-2016, 05:30 PM	#2
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	CEL disables a lot of stuff, may include flappy paddles.

06-14-2016, 07:59 PM	#9
gramicci101 Off Topic Join Date: Feb 2014 Drives: 2014 Subaru BRZ Limited Location: Vegas, baby! Posts: 4,610 Thanks: 2,369 Thanked 4,243 Times in 2,170 Posts Mentioned: 43 Post(s) Tagged: 3 Thread(s)	P0171 is running lean. Do you have any mods on your car such as header, tune, or intake?

06-16-2016, 03:37 AM	#11
lizbrayan Senior Member Join Date: Jan 2016 Drives: '15 Scion Frs Steel Location: New Jersey Posts: 285 Thanks: 108 Thanked 53 Times in 42 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Not to rob the thread but i also have a a/t and when im in manual mode and have the vsc sport on and hit heavy traffic i get a code(dont remeber which one) but its for the cam shaft positioning sensor or something along those lines Sent from my SGH-T999N using Tapatalk

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