FI car - P0300 code, and now hesitation/bogging at higher rpm - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FirestormFlex · 03-26-2016, 02:34 PM

My car is a 2015 FR-S. I recently had the SBD turbo kit installed, tuned by Moto-East. I'm on the 3rd tune revision and everything has been going great - car was driving like a dream.

Then today while driving to work, I did a pull in 4th gear. Hit a steady 10.4psi - right on target. Right around redline I shifted into 5th, and I had a CEL flash for few seconds. Everything seemed to be running ok still and I continued to work.

When I arrived, I hooked up my laptop and pulled a code - P0300 - multiple cylinder/random misfire. I cleared the code.

When I left work to drive home, the car started fine and idled fine. Driving around town from light to light was completely normal as well. But once I got on the highway, the car was running like crap - it was fine until 4500rpm or so, but after that would start hesitating/bogging like crazy. It was hard to get the car up to 5000rpm. Once I got off the highway, everything was still running smoothly while idling at stop lights etc.

Any ideas here? Is it possible that it's a coil issue? Did I blow up my car?

steve99 · 03-26-2016, 07:15 PM

Talk to the tuner
could be heaps of things
running lean due air leak
bad fuel
check electrical connections
bad spark plugs coil packs ect
http://forums.nasioc.com/forums/show....php?t=2550077

x1UP · 03-26-2016, 10:06 PM

Mike at Moto-East should be able to help you out easily. He's one of the best tuners out there for our car!

Spartarus · 03-27-2016, 11:52 AM

Did you clamp the Evap line under the intake manifold?

It sounds a whole hell of a lot like it popped off.

If it pops off, you have an open port under the intake leaking boost, downstream of the MAF sensor. Bad things follow.

Lots of people have had the same issue with the same symptoms.

GsxrMe · 03-27-2016, 01:13 PM

Quote:

Originally Posted by Spartarus

Did you clamp the Evap line under the intake manifold?

It sounds a whole hell of a lot like it popped off.

If it pops off, you have an open port under the intake leaking boost, downstream of the MAF sensor. Bad things follow.

Lots of people have had the same issue with the same symptoms.

Anyone should do this before turbo install. The hose also leading from the evap to the hardline by the injectors also isn't clamped and can pop off.

FirestormFlex · 03-27-2016, 01:18 PM

All lines were clamped at the time of install. We will be going back and double checking everything though .

AfterFXNinja · 07-05-2017, 03:09 PM

Quote:

Originally Posted by FirestormFlex

All lines were clamped at the time of install. We will be going back and double checking everything though .

Sorry for bump, but I'm having the same issue with the SBD kit. How did you fix this?

Dru670 · 12-02-2017, 11:25 PM

updates to this issue please?

BRZ RN · 12-15-2017, 05:48 PM

my car bogged down bad and have the same problem now. i dont know what to do next

ML · 08-13-2020, 11:57 PM

sorry for the necro...Had this exact same issue at the track today. Wouldn't go over like 6000 rpm and felt like fuel was cutting out or something. AFR looks fine so doesn't seem like injector/sparkplugs. Also have a bad o2 sensor I believe, which I will replace.

Logs:
https://datazap.me/u/sethmtloutlookc...?log=1&data=16

03-26-2016, 02:34 PM	#1
FirestormFlex Member Join Date: Jul 2015 Drives: 2015 Turbo FR-S Location: Connecticut Posts: 98 Thanks: 35 Thanked 47 Times in 30 Posts Mentioned: 2 Post(s) Tagged: 2 Thread(s)	FI car - P0300 code, and now hesitation/bogging at higher rpm My car is a 2015 FR-S. I recently had the SBD turbo kit installed, tuned by Moto-East. I'm on the 3rd tune revision and everything has been going great - car was driving like a dream. Then today while driving to work, I did a pull in 4th gear. Hit a steady 10.4psi - right on target. Right around redline I shifted into 5th, and I had a CEL flash for few seconds. Everything seemed to be running ok still and I continued to work. When I arrived, I hooked up my laptop and pulled a code - P0300 - multiple cylinder/random misfire. I cleared the code. When I left work to drive home, the car started fine and idled fine. Driving around town from light to light was completely normal as well. But once I got on the highway, the car was running like crap - it was fine until 4500rpm or so, but after that would start hesitating/bogging like crazy. It was hard to get the car up to 5000rpm. Once I got off the highway, everything was still running smoothly while idling at stop lights etc. Any ideas here? Is it possible that it's a coil issue? Did I blow up my car?

03-26-2016, 10:06 PM	#3
x1UP One & Done (AOZORA) Join Date: Jun 2014 Drives: '15 Series.Blue BRZ (WRB) Location: New York City Posts: 932 Thanks: 340 Thanked 217 Times in 160 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Mike at Moto-East should be able to help you out easily. He's one of the best tuners out there for our car! __________________ "I have the need....the need for speed! - Maverick (Top Gun)

03-27-2016, 11:52 AM	#4
Spartarus ...Just add nauseum Join Date: Jan 2015 Drives: 2003 (AP1) S2000 Location: Miami, FL Posts: 546 Thanks: 310 Thanked 785 Times in 335 Posts Mentioned: 19 Post(s) Tagged: 1 Thread(s)	Did you clamp the Evap line under the intake manifold? It sounds a whole hell of a lot like it popped off. If it pops off, you have an open port under the intake leaking boost, downstream of the MAF sensor. Bad things follow. Lots of people have had the same issue with the same symptoms. __________________ There are many ways to displace. -Spartarus

12-15-2017, 05:48 PM	#9
BRZ RN Senior Member Join Date: Nov 2014 Drives: Blue BRZ Location: Rockville, MD Posts: 201 Thanks: 67 Thanked 25 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	my car bogged down bad and have the same problem now. i dont know what to do next __________________ WRB 2014 BRZ Limited https://www.facebook.com/media/set/?set=a.10154891000420618.1073741837.579105617&type =3

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
P0300 and P0304 CEL -- uh oh!	empower-auto	Issues \| Warranty \| Recalls / TSB	26	04-16-2018 04:19 PM
Engine bogging / stumble / hesitation / jerking during accelaration ard 2.5k - 3k RPM	mo420	Issues \| Warranty \| Recalls / TSB	24	07-29-2017 08:35 PM
Engine bogging down	FRiSson	Issues \| Warranty \| Recalls / TSB	6	08-14-2015 09:07 PM
p0300 code... Anyone else??	NickFRS	Engine, Exhaust, Transmission	1	09-06-2013 12:33 AM
Bogging Question??!! Help needed...	ScionFrsFan	Engine, Exhaust, Transmission	36	02-05-2013 07:44 PM

03-26-2016, 07:15 PM	#2
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,996 Thanks: 1,035 Thanked 4,993 Times in 2,983 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Talk to the tuner could be heaps of things running lean due air leak bad fuel check electrical connections bad spark plugs coil packs ect http://forums.nasioc.com/forums/show....php?t=2550077

03-27-2016, 01:18 PM	#6
FirestormFlex Member Join Date: Jul 2015 Drives: 2015 Turbo FR-S Location: Connecticut Posts: 98 Thanks: 35 Thanked 47 Times in 30 Posts Mentioned: 2 Post(s) Tagged: 2 Thread(s)	All lines were clamped at the time of install. We will be going back and double checking everything though .

12-02-2017, 11:25 PM	#8
Dru670 Senior Member Join Date: Oct 2015 Drives: 2016 Scion FR-S Location: Las Vegas Posts: 155 Thanks: 11 Thanked 8 Times in 8 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	updates to this issue please?

User Name		Remember Me?
Password