check engine soon - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Buick When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-20-2015, 10:47 AM   #21
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,857
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

Yes, gutted cat bad.

High flow cat good.

High flow cat cheap on ebay.
rjolly87 is online now   Reply With Quote
Old 09-20-2015, 11:15 AM   #22
Senior Member
Posts like a Supercharger
 
Mad_Coachman's Avatar
 
Join Date: Dec 2003
Location: Baldwin,New York
Posts: 164
Thanked 20 Times in 13 Posts
Mad_Coachman will become famous soon enoughMad_Coachman will become famous soon enough
Default

Quote:
Originally Posted by Tech II View Post
Just a heads up...what Mad Coachman did, won't work in all states.....in some states, where you have emission testing of exhaust gases, a gutted cat will not pass the test...
In New York all OBD2 cars just plug into the diagnostic port no "sniffers" here. Once I get my oil burning problem solved I will get a high flow cat.
Mad_Coachman is offline   Reply With Quote
Old 09-20-2015, 02:56 PM   #23
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Lol, that'* funny that you say that.
1. A PCM can tell if the cat is there or not.
2. NYC still uses sniffers
3. Being a NYS vehicle inspector, I can tell just by tapping on a cat if its gutted or not. So stop with the bullshit and stop offering illegal advice.
Mike is online now   Reply With Quote
Old 09-21-2015, 11:05 PM   #24
Senior Member

Certified GM nut
 
Tech II's Avatar
 
Join Date: Feb 2014
Location: Worcester, Ma.
Posts: 2,150
Thanked 785 Times in 614 Posts
Tech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond repute
Default

Mike, explain #1?
Tech II is offline   Reply With Quote
The Following User Says Thank You to Tech II For This Useful Post:
Mad_Coachman (09-22-2015)
Old 09-22-2015, 05:51 AM   #25
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

It doesn't know per se, but if its gutted or missing the PCM can tell something is wrong via the downstream O2 sensor values. This will trip a code eventually.
Mike is online now   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Check Engine Soon Slayer636 Performance, Brainstorming & Tuning 2 07-10-2007 09:53 AM
Check Engine Soon... mac077 2000-2005 12 02-22-2007 11:45 AM
Check Engine Soon light came on,.....a problem or not??? GTP2SSEi 2000-2005 1 04-19-2005 03:02 PM
Service Engine Soon vs. Check Engine vital49 1992-1999 6 03-22-2004 05:56 PM
Check Engine Soon!!!! 2000SilverBullet 1992-1999 4 03-03-2003 11:09 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:16 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.