Long tube headers and check engine light?

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Mar 28, 2007 | 09:44 PM

fright88

Thread Starter

Safety Car

Joined: Jan 2006

Posts: 3,713

Likes: 0

From: Littleton CO

Long tube headers and check engine light?

Just wondering how many members are running long tubes without a tune have check engine lights? Thanks for any help.

Mar 28, 2007 | 09:46 PM

burtonbl103

Team Owner

Joined: Jan 2004

Posts: 38,772

Likes: 621

From: Boston MA

St. Jude Donor '06-'07-'08,'12-'13

I never got any light or codes

i think the key it to make sure you put the 02 sensord back in there SAME EXACT LOCATION on the new headders

Mar 28, 2007 | 09:50 PM

achilds

Melting Slicks

Joined: Oct 2005

Posts: 2,515

Likes: 3

From: Goleta California

I didn't have any codes, but I went ahead and had the tune anyway. It well worth it, because you really want the engine optimized to work with the headers. If you don't you will most likely be leaving quite a few ponies in the barn!

Mar 28, 2007 | 11:01 PM

cbrf4i1

Drifting

Joined: Jul 2005

Posts: 1,533

Likes: 0

From: az

there are o2 sims kits that can take care of CEL even with no cats applications. pm me for source if needed.

Mar 28, 2007 | 11:05 PM

fright88

Thread Starter

Safety Car

Joined: Jan 2006

Posts: 3,713

Likes: 0

From: Littleton CO

Quote:

Originally Posted by achilds

I will be getting a tune in a couple months. There arn't many places around here that can dyno tune

Mar 28, 2007 | 11:26 PM

CDN Vette

Pro

Joined: Jan 2006

Posts: 645

Likes: 0

From: Toronto Ontario

never had engine codes after header and x pipe install without tune.

Mar 28, 2007 | 11:37 PM

Oli1313

Le Mans Master

Joined: Oct 2006

Posts: 5,474

Likes: 3

From: Bradenton, FL & Chandler AZ

St. Jude Donor '09

Quote:

Originally Posted by cbrf4i1

there are o2 sims kits that can take care of CEL even with no cats applications. pm me for source if needed.

Had codes until cbrf4i1 fixed them with his sims.

Mar 29, 2007 | 01:01 AM

glennhl

Le Mans Master

Joined: Feb 2006

Posts: 5,762

Likes: 4

From: Chandler Arizona

LG Pro Long Tubes, uncoated, no tune, no codes. Knock on wood!

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Mar 29, 2007 | 06:11 AM

Joe_G

Tech Contributor

Joined: Jul 2002

Posts: 14,950

Likes: 264

From: St. Louis, MO

St. Jude Donor '08

American racing headers, uncoated, w/ cats. P0420 and P0430 every day until tuned. I could turn them off with an Actron scanner but they came back.

Mar 29, 2007 | 07:45 AM

#10

Max@Cartek

Drifting

Joined: Feb 2007

Posts: 1,446

Likes: 0

From: Cranford NJ

With a proper tune you should have no codes being thrown.

Max

Mar 29, 2007 | 07:55 AM

#11

fright88

Thread Starter

Safety Car

Joined: Jan 2006

Posts: 3,713

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From: Littleton CO

Quote:

Originally Posted by vidal1313

Had codes until cbrf4i1 fixed them with his sims.

Is this a joke? CBR F4i??

Mar 29, 2007 | 09:45 AM

#12

mfoti

Instructor

Joined: Sep 2006

Posts: 233

Likes: 1

Melrose LTs with high flow cats. Code showed up after about 2 months...I delete and it comes back within a few days. I plan on getting tune before the end of the year so i am holding out until then.

Mar 29, 2007 | 10:59 AM

#13

vettl83

Burning Brakes

Joined: Feb 2002

Posts: 1,232

Likes: 10

From: Montrose Colorado

Kooks lts w/high flow cats, codes 420 and 430 set every two to three days after clearing. Tune will take care of it in April, motor runs just fine with em set.

Mar 29, 2007 | 11:01 AM

#14

DarthStimpy

Melting Slicks

Joined: Jun 2003

Posts: 2,637

Likes: 0

From: Acton MA

Quote:

Originally Posted by fright88

Is this a joke? CBR F4i??

Quick Read on 02 sims.

And the DIY

Though I'd pay the $30 for the pre-made one

Last edited by DarthStimpy; Mar 29, 2007 at 11:05 AM.

Mar 29, 2007 | 11:11 AM

#15

cbrf4i1

Drifting

Joined: Jul 2005

Posts: 1,533

Likes: 0

From: az

Quote:

Originally Posted by fright88

Is this a joke? CBR F4i??

no joke sir. $25 solves the issue.

Mar 29, 2007 | 12:01 PM

#16

fright88

Thread Starter

Safety Car

Joined: Jan 2006

Posts: 3,713

Likes: 0

From: Littleton CO

Quote:

Originally Posted by cbrf4i1

no joke sir. $25 solves the issue.

Ok sorry I had a mis read. I thought the sims were called cbrf4i which I thought was a typo or something because of the bike. Sorry about that.

Apr 5, 2007 | 06:18 PM

#17

Ultimate CC

Pro

Joined: Mar 2007

Posts: 565

Likes: 0

From: Peekskilll NY

you could also use spark plug foulers...

Apr 5, 2007 | 06:40 PM

#18

BaBa Boey

Instructor

Joined: Jul 2006

Posts: 204

Likes: 0

Melrose headers sells a signal conditioner which supposedly will eliminate the O2 sensor code.

http://www.melroseheaders.com/produc...onditioner.php

Apr 5, 2007 | 10:45 PM

#19

DSOMC6

Race Director

Joined: Dec 2005

Posts: 11,892

Likes: 107

From: God's Country, ID

It appears some throw a CEL and others do not?

I had LG long tubes and Halltech and it threw a CEL intermittently. I dyno'd it (baseline for F/I install) and it was running fairly rich which was causing it to lose some HP.
Get a tune with LT headers to adjust the Air/fuel, among other things, and get the full power potential!