CEL P0301 C1201 and U0100 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

peachch · 04-01-2013, 12:31 AM

I have 15000 mi on my car. The CEL and Traction control light are both on this morning ans it shows CEL P0301 C1201 and U010. Anyone experiences this? The car run very rough and no power.

andrew20195 · 04-01-2013, 11:44 AM

The P0301 is a misfire in #1 cylinder. That's why your car is running rough. The other codes are likely there because of the P0301. Take it to your dealer and let them diagnose it (hopefully you're still under warranty).

peachch · 04-02-2013, 12:47 PM

Quote:

Originally Posted by andrew20195

The P0301 is a misfire in #1 cylinder. That's why your car is running rough. The other codes are likely there because of the P0301. Take it to your dealer and let them diagnose it (hopefully you're still under warranty).

It is spark plug issue. At this moment, I still do not know the cause of damage.
The spark plug looks very bad. My car has only 15000mi.

Ranatsu · 04-02-2013, 03:53 PM

Yea the plug shouldn't be broken like that.

peachch · 04-03-2013, 02:11 AM

Two of them went so bad. Here is another plug picture.

atledreier · 04-03-2013, 03:16 AM

Wow.... Hope they figure this out. Keep us posted!

Grishbok · 04-03-2013, 04:03 AM

Main concern #1: Where is the missing metal from the spark plug. Did they find it or did it fall into the combustion chamber, and how much damage did it do in there.

Main concern #2: Why did the spark plug break like that in the first place.

Question: do you have any modifications, a tune, anything?

pauland · 04-03-2013, 04:11 AM

Are those stock spark plugs? What brand are those?

Sent from my iPhone using Tapatalk

alan.chalkley · 04-03-2013, 04:13 AM

The metal from the plugs might just have arced away and not caused any damage.
Was the engine lifted and slid forward to remove the plugs?

peachch · 04-03-2013, 09:43 AM

Quote:

Originally Posted by Grishbok

Main concern #1: Where is the missing metal from the spark plug. Did they find it or did it fall into the combustion chamber, and how much damage did it do in there.

Main concern #2: Why did the spark plug break like that in the first place.

Question: do you have any modifications, a tune, anything?

I could not find missing metal. After I replaced the plugs, the engineruns okay. I have 2.5" mid pipe on.

peachch · 04-03-2013, 09:47 AM

Quote:

Originally Posted by alan.chalkley

The metal from the plugs might just have arced away and not caused any damage.
Was the engine lifted and slid forward to remove the plugs?

No lifted or slid need. You just need 3/8" tool set.

Quote:

Originally Posted by pauland

Are those stock spark plugs? What brand are those?

Sent from my iPhone using Tapatalk

They are stock. I replaced them with HKS M45HL because I do not have other options.

NYNOMAD · 04-03-2013, 09:51 AM

[QUOTE=peachch;838153]No lifted or slid need. You just need 3/8" tool set.

No lift to get the plugs out - now that is good news!

Glad it was a simple fix!

chenshuo · 04-03-2013, 09:55 AM

Quote:

Originally Posted by peachch

No lifted or slid need. You just need 3/8" tool set.

Can you do a DIY to remove spark plugs without lift/slide the engine? If you can do that i'm sure a lot of people would be appreciated!

Huehuecoyotl · 04-03-2013, 10:30 AM

wondering about your coil pack..suspect timing setup on your tune, namely exhaust timing

...you running a tune??

04-03-2013, 02:11 AM	#5
peachch Member Join Date: Jan 2012 Drives: White 86 Sport Plus Location: Thai Posts: 59 Thanks: 23 Thanked 11 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Two of them went so bad. Here is another plug picture. Attached Images

04-03-2013, 04:03 AM	#7
Grishbok Volunteer Fire and Rescue Join Date: Jul 2012 Drives: Ambulance... sideways. Location: No. VA Posts: 546 Thanks: 97 Thanked 350 Times in 166 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Main concern #1: Where is the missing metal from the spark plug. Did they find it or did it fall into the combustion chamber, and how much damage did it do in there. Main concern #2: Why did the spark plug break like that in the first place. Question: do you have any modifications, a tune, anything? __________________ It's more fun to drive a slow car fast, than a fast car slow.

04-01-2013, 12:31 AM	#1
peachch Member Join Date: Jan 2012 Drives: White 86 Sport Plus Location: Thai Posts: 59 Thanks: 23 Thanked 11 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Spark Plug Broken : CEL P0301 C1201 and U0100 I have 15000 mi on my car. The CEL and Traction control light are both on this morning ans it shows CEL P0301 C1201 and U010. Anyone experiences this? The car run very rough and no power. Last edited by peachch; 04-03-2013 at 02:12 AM.

04-01-2013, 11:44 AM	#2
andrew20195 Senior Member Join Date: Mar 2013 Drives: 2013 Subaru BRZ Location: Baton Rouge Posts: 321 Thanks: 154 Thanked 104 Times in 78 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The P0301 is a misfire in #1 cylinder. That's why your car is running rough. The other codes are likely there because of the P0301. Take it to your dealer and let them diagnose it (hopefully you're still under warranty).

04-02-2013, 03:53 PM	#4
Ranatsu Cone basher Join Date: Mar 2012 Drives: 2017 Subaru BRZ Series.Yellow Location: Dodgin cones in San Antonio, TX Posts: 800 Thanks: 51 Thanked 256 Times in 169 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Yea the plug shouldn't be broken like that.

04-03-2013, 04:11 AM	#8
pauland Member Join Date: Oct 2012 Drives: Subaru BRZ Location: Philippines Posts: 45 Thanks: 22 Thanked 13 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Are those stock spark plugs? What brand are those? Sent from my iPhone using Tapatalk

04-03-2013, 04:13 AM	#9
alan.chalkley Senior Member Join Date: Feb 2012 Drives: 4wd zooks Location: Sydney / Australia Posts: 495 Thanks: 135 Thanked 167 Times in 108 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The metal from the plugs might just have arced away and not caused any damage. Was the engine lifted and slid forward to remove the plugs?

04-03-2013, 09:51 AM	#12
NYNOMAD Senior Member Join Date: Jun 2012 Drives: BRZ WRB LTD MAN Location: NY Posts: 108 Thanks: 4 Thanked 25 Times in 22 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	[QUOTE=peachch;838153]No lifted or slid need. You just need 3/8" tool set. No lift to get the plugs out - now that is good news! Glad it was a simple fix!

User Name		Remember Me?
Password