HELP Kooks Headers P0303 code - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

mmaattppllaayy · 10-17-2013, 09:24 PM

I installed kooks long tube headers with cats and their 3 in exhaust. I got the expected o2 sensor codes but I also got a p0303 code(misfire cylinder 3). Is this common until I have the car tuned? Just want to be safe.

litle88 · 10-17-2013, 09:30 PM

Check your wires and or spark plugs from that cylinder.

SAP_Pete · 10-17-2013, 09:30 PM

Quote:

Originally Posted by mmaattppllaayy

I installed kooks long tube headers with cats and their 3 in exhaust. I got the expected o2 sensor codes but I also got a p0303 code(misfire cylinder 3). Is this common until I have the car tuned? Just want to be safe.

Shouldn't throw misfire codes. Check plug and wire.

Lethal Racing · 10-17-2013, 09:41 PM

I concur

MarylandSpeed · 10-17-2013, 10:08 PM

What's been said. Sometime people leave the plugs in during the install, and they end up getting cracked.

mmaattppllaayy · 10-17-2013, 10:32 PM

Ok I checked all plugs and wires all seemed to be fine. I straightened all intake clamps as well for good measure on my cai brand intake. What's weird is the car runs fine. No stumbling or anything out of the ordinary.

Smirnoff · 10-17-2013, 10:43 PM

Change cracked plug - your welcome!

mmaattppllaayy · 10-17-2013, 10:46 PM

Quote:

Originally Posted by Smirnoff

Change cracked plug - your welcome!

I will be checking that. Oddly enough the headers have been on for a few weeks and now it threw that code. Just found it weird anyways thanks for the help guys. What's the best plugs to replace the stickers with. Might just do them all.

axis · 10-18-2013, 03:27 AM

Quote:

Originally Posted by mmaattppllaayy

I will be checking that. Oddly enough the headers have been on for a few weeks and now it threw that code. Just found it weird anyways thanks for the help guys. What's the best plugs to replace the stickers with. Might just do them all.

Replace the OEM stickers with new OEM stickers.

mmaattppllaayy · 10-18-2013, 07:21 AM

Quote:

Originally Posted by axis

Replace the OEM stickers with new OEM stickers.

Ha stupid autospell. Each new sticker should make me gain around 15 hp right?

mmaattppllaayy · 10-18-2013, 08:32 AM

Is the right part number for those ac delco plugs 41-110?

10-17-2013, 09:24 PM	#1
mmaattppllaayy Drives: '10 Camaro 2SS Join Date: Jul 2013 Location: Charlotte, NC Posts: 428	HELP Kooks Headers P0303 code I installed kooks long tube headers with cats and their 3 in exhaust. I got the expected o2 sensor codes but I also got a p0303 code(misfire cylinder 3). Is this common until I have the car tuned? Just want to be safe.

10-17-2013, 09:30 PM	#2
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Check your wires and or spark plugs from that cylinder. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

10-17-2013, 10:43 PM	#7
Smirnoff Drives: Camaro SS Join Date: Mar 2010 Location: Motorcity Dragway Posts: 978	Change cracked plug - your welcome! __________________ 11.90's w/headers, CAI, custom tune, slicks/skinnys, shifter & 100+ Ethyl.

10-17-2013, 09:41 PM	#4
Lethal Racing Drives: LSx Performance Specialist Join Date: Jul 2011 Location: Lafayette, LA Posts: 517	I concur

10-17-2013, 10:08 PM	#5
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	What's been said. Sometime people leave the plugs in during the install, and they end up getting cracked.

10-17-2013, 10:32 PM	#6
mmaattppllaayy Drives: '10 Camaro 2SS Join Date: Jul 2013 Location: Charlotte, NC Posts: 428	Ok I checked all plugs and wires all seemed to be fine. I straightened all intake clamps as well for good measure on my cai brand intake. What's weird is the car runs fine. No stumbling or anything out of the ordinary.

10-18-2013, 08:32 AM	#11
mmaattppllaayy Drives: '10 Camaro 2SS Join Date: Jul 2013 Location: Charlotte, NC Posts: 428	Is the right part number for those ac delco plugs 41-110?