Thread: P0420 No cat

Results 1 to 13 of 13
  1. #1 P0420 No cat 
    SE Level Member
    Join Date
    Feb 2015
    Location
    Nashville TN
    Posts
    3
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Acquired a 03 GTP car has been modified and has no cat. I like how it sounds without, need cel off do I get a o2 emulator or program computer. New to this need help and advice
    Reply With Quote  
     

  2. #2 Re: P0420 No cat 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    you can try the emulator trick, it may work. 01 up cars need the cat test turned off with a tuner program to fully delete it from working any more. as well as setting the codes to no reporting. aka deleted.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  3. #3 Re: P0420 No cat 
    Donating Users EHB's Avatar
    Join Date
    Dec 2014
    Location
    Maryland
    Posts
    843
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    oops thinking of the wrong code.
    2000 GTP - 3" Catted DP...ZZP Plog...9" Cone filter...Reptile pcm...3.4 pulley...AL104's
    Reply With Quote  
     

  4. #4 Re: P0420 No cat 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    420 is code for pot smoking.........the p0420 is a cat code.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  5. #5 Re: P0420 No cat 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,815
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    Emulator isn't going to work on an 01+ car.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

  6. #6 Re: P0420 No cat 
    Donating Users EHB's Avatar
    Join Date
    Dec 2014
    Location
    Maryland
    Posts
    843
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    damn... i think i just turned off the 0420 thinking it was the evap code. but the 0420 code should have been deleted from my ..."overkill" pcm.
    2000 GTP - 3" Catted DP...ZZP Plog...9" Cone filter...Reptile pcm...3.4 pulley...AL104's
    Reply With Quote  
     

  7. #7 Re: P0420 No cat 
    SE Level Member
    Join Date
    Feb 2015
    Location
    Nashville TN
    Posts
    3
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    So emulator is not going to work since car is 03, so please give me info on programming the computer. Thanks for advice and info everyone
    Reply With Quote  
     

  8. #8 Re: P0420 No cat 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    ive actually got a pcm that will work in your car and i have a tuner i can set it up so its right for ya. pm for info if interested.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  9. #9 Re: P0420 No cat 
    SE Level Member
    Join Date
    Feb 2015
    Location
    Nashville TN
    Posts
    3
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    ScottyDoggs i'm new to this i'm not sure what pm means sorry. Please tell me how to pm so I can fix this car sir thanks
    Reply With Quote  
     

  10. #10 Re: P0420 No cat 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,927
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    ill send you one, you see a notification for a new private message.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  11. #11 Re: P0420 No cat 
    I live here. Slick2500's Avatar
    Join Date
    Oct 2010
    Location
    Rapid City, South Dakota, United States
    Posts
    7,464
    Thanks (Received)
    0
    Likes (Received)
    2
    Dislikes (Received)
    0
    Or you could just do the simple thing and run spark plug non foulers. http://www.355nation.net/forum/how-p...ight-pics.html
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
    Reply With Quote  
     

  12. #12 Re: P0420 No cat 
    GrandPrix Junkie HighOctaneRacing's Avatar
    Join Date
    Jan 2011
    Location
    Enfield, CT
    Posts
    3,360
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    1
    Quote Originally Posted by BillBoost37 View Post
    Emulator isn't going to work on an 01+ car.
    Sam had no issues running ZZPs o2 emulator on her 03.

    Sent from my LG G3
    Reply With Quote  
     

  13. #13 Re: P0420 No cat 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,815
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    If you say so.

    The way the pcm runs the test says otherwise. The pcm dumps fuel and expects to see the change. If it doesn't see the change it's expecting, it continues dumping fuel every so often. Hence the issue.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

Similar Threads

  1. P0420
    By Teecraige in forum Introductions/Noob Questions
    Replies: 4
    Last Post: 06-09-2015, 06:00 PM
  2. p0420
    By sirricealot in forum 5.3L V8 (LS4)
    Replies: 6
    Last Post: 04-25-2013, 10:20 AM
  3. P0420. Cat or 02
    By tayl5645 in forum General Tech Discussion
    Replies: 3
    Last Post: 04-22-2011, 09:20 AM
  4. P0420
    By PhunnyJesta in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 3
    Last Post: 03-16-2011, 08:29 PM
  5. p0420
    By chickenfried in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 7
    Last Post: 08-22-2010, 04:26 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •