Engine bogging down - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FRiSson · 09-08-2012, 05:04 PM

I've driven my car for 6,000 miles, but in the past week it has developed a problem. The engine bogs down at times. I'll be driving on the street, shift into 2, and then it seems to just bog down and slow down, forcing me to add a little more gas. In addition, there is a kind of hesitation when accelerating from rpm's of 3,000 or less.

My first thought was that a caliper might be dragging, so I checked all four wheels, but they same fine, with no heating up of the disks. My second thought is bad gas, so I finished the tank and filled it up with 93 Shell. Too early to see if that has made a difference.

Anyone else experience this?

Hotlava86 · 09-09-2012, 12:10 AM

honestly you might have the dreaded CEL issue developing but just hasn't set off a light yet. that would be my guess is that your cam gear isn't advancing or retarding the timing at the correct times which just hasn't for some reason or another been enough to set off the light yet.

Jidonsu · 09-09-2012, 12:16 AM

Any mods?

BTW, check your air filter. I'd have cars bog because there were leaves blocking the airflow.

FRiSson · 09-09-2012, 10:51 AM

No mods. Stock.

Is this what the CEL-related syndrome is all about? It is not stalling and rpms are not changing.

Hotlava86 · 09-09-2012, 12:24 PM

it sounds like what some of my friends have encountered. they just noticed the engine being less responsive.

mo420 · 07-29-2015, 04:03 AM

Hi all, sorry to bring back an old thread.

Just wondering, did the OP find out what's causing the problem in the end? I'm a bit curious to know bcos my 86 is starting to develop the same symptoms.

Any other feedback/opinion would be welcome.

Car is an AT, bone stock completely and has only got 28k kms on the clock.

Cheers

mo420 · 08-14-2015, 08:07 PM

Hi,

Not trying to hijack this thread haha just wanna say I had a similar problem and turned out to be bad direct injectors.

Visit my thread for more info:
http://www.ft86club.com/forums/showthread.php?t=92489i

09-08-2012, 05:04 PM	#1
FRiSson Senior Member Join Date: Jun 2012 Drives: FR-S MT Location: New England Posts: 1,081 Thanks: 118 Thanked 483 Times in 241 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Engine bogging down I've driven my car for 6,000 miles, but in the past week it has developed a problem. The engine bogs down at times. I'll be driving on the street, shift into 2, and then it seems to just bog down and slow down, forcing me to add a little more gas. In addition, there is a kind of hesitation when accelerating from rpm's of 3,000 or less. My first thought was that a caliper might be dragging, so I checked all four wheels, but they same fine, with no heating up of the disks. My second thought is bad gas, so I finished the tank and filled it up with 93 Shell. Too early to see if that has made a difference. Anyone else experience this?

09-09-2012, 12:10 AM	#2
Hotlava86 Senior Member Join Date: Jul 2012 Drives: 2013 Hot lava Fr-s, 2007 Mazda 3 Location: kansas city missouri Posts: 282 Thanks: 30 Thanked 60 Times in 41 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	honestly you might have the dreaded CEL issue developing but just hasn't set off a light yet. that would be my guess is that your cam gear isn't advancing or retarding the timing at the correct times which just hasn't for some reason or another been enough to set off the light yet. __________________ Raising the bar one step at a time! Kansas City FR-S/BRZ Facebook group. https://www.facebook.com/groups/452909128083343/ Hotlava86's Build thread!http://www.ft86club.com/forums/showthread.php?t=14152

09-09-2012, 12:16 AM	#3
Jidonsu Senior Member Join Date: Jun 2012 Drives: Scion FR-S \| 6MT \| Ultramarine Location: CT Posts: 410 Thanks: 36 Thanked 98 Times in 60 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Any mods? BTW, check your air filter. I'd have cars bog because there were leaves blocking the airflow. __________________ FR-S \| 6MT \| Ultramarine

09-09-2012, 12:24 PM	#5
Hotlava86 Senior Member Join Date: Jul 2012 Drives: 2013 Hot lava Fr-s, 2007 Mazda 3 Location: kansas city missouri Posts: 282 Thanks: 30 Thanked 60 Times in 41 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	it sounds like what some of my friends have encountered. they just noticed the engine being less responsive. __________________ Raising the bar one step at a time! Kansas City FR-S/BRZ Facebook group. https://www.facebook.com/groups/452909128083343/ Hotlava86's Build thread!http://www.ft86club.com/forums/showthread.php?t=14152

07-29-2015, 04:03 AM	#6
mo420 Member Join Date: Jul 2015 Drives: '13 Black Toyota 86 (AT) Location: Brunei Posts: 14 Thanks: 0 Thanked 3 Times in 2 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Hi all, sorry to bring back an old thread. Just wondering, did the OP find out what's causing the problem in the end? I'm a bit curious to know bcos my 86 is starting to develop the same symptoms. Any other feedback/opinion would be welcome. Car is an AT, bone stock completely and has only got 28k kms on the clock. Cheers Last edited by mo420; 07-29-2015 at 05:38 AM.

09-09-2012, 10:51 AM	#4
FRiSson Senior Member Join Date: Jun 2012 Drives: FR-S MT Location: New England Posts: 1,081 Thanks: 118 Thanked 483 Times in 241 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	No mods. Stock. Is this what the CEL-related syndrome is all about? It is not stalling and rpms are not changing.

08-14-2015, 08:07 PM	#7
mo420 Member Join Date: Jul 2015 Drives: '13 Black Toyota 86 (AT) Location: Brunei Posts: 14 Thanks: 0 Thanked 3 Times in 2 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Hi, Not trying to hijack this thread haha just wanna say I had a similar problem and turned out to be bad direct injectors. Visit my thread for more info: http://www.ft86club.com/forums/showthread.php?t=92489i

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