Jump to content

P0420 p0430 Kooks Headers

By Buddy B
May 27, 2022 in Engines & Drivetrain

Share

https://www.gm-trucks.com/forums/topic/257352-p0420-p0430-kooks-headers/

Recommended Posts

Enthusiast

Buddy B

Posted May 27, 2022

Posted May 27, 2022 (edited)

Hey guys. Installed Kooks headers and Y pipe with green high flow cats on my 18 Silverado. Got a tune from Lew but getting p0420 p0430 codes. Lew won't delete these codes. I Installed some cheap o2 spacers but to no avail. Any other suggestions for getting rid of the codes?

Edited May 27, 2022 by Willard Burnight

Senior Enthusiast

CamGTP

Posted May 29, 2022

Posted May 29, 2022

Probably will have to find someone that will turn off the codes.

If the spacers didn't work, there isn't much else you can do.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Share

https://www.gm-trucks.com/forums/topic/257352-p0420-p0430-kooks-headers/

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.4k
Total Topics

2.7m
Total Posts
Member Statistics

342,792
Total Members

8,960
Most Online

Newest Member
sqidget
Joined 14 minutes ago
Who's Online 8 Members, 1 Anonymous, 503 Guests (See full list)
- sqidget
- cautious optimist
- PBNB
- GETGONE
- DarkSkyX31
- magpie7777
- Steve-2019
- JimCost2014

Latest Articles
Posts
- Remote Start Noise 2024 2500 HD Gas
  
  By BCGM · Posted 43 minutes ago
  
  MJM 1957 Thank you for your reply ! How often does the oil pump need to be primed .? So far I only notice this noise when the truck has been sitting overnight . Is there a length of time the truck sits before it will make that noise and do the prime again ?
- 2024 silverado 6.2 just went down
  
  By cautious optimist · Posted 1 hour ago
  
  What issues are the 3.0 diesel facing? When I bought mine all my research showed the diesel was the engine most likely to be worry-free, if you use the right oil and only use top tier gas.
- Scan Equipment for 2024 2500 HD 6.6 Gas
  
  By BCGM · Posted 1 hour ago
  
  I'm thinking of getting a Scan Gauge or whatever you call that instrument to mount in the above truck to see all the information while you are driving . Because our truck is a Custom Trim Level to see Fuel Consumption , Transmission Temp etc. I need to turn the little knob on the instrument panel and rotate it to search . Not the best when driving down the road in my opinion What one are you fellas using ? What is a good make to purchase for the truck ? Thank you !
- Remote Starting issue or not
  
  By Jsdirt · Posted 1 hour ago
  
  I honestly have no idea. These days I don't work on anything built after 1994. Based on what is shared with me from those still in the industry, this is par for the course - noises, rattles, ticking, etc.. Probably better posting that in the 2024 truck forum so fellow owners can chime in with their experiences. This section doesn't get as much eyes on it.
- Joke Thread
  
  By Chuck FB · Posted 1 hour ago
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 157 members
- diesel 3.0
  
  Open Club · 279 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 212 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  KARNUT
  20
2. 2
  
  Atlas
  19
3. 3
  
  Grumpy Bear
  17
4. 4
  
  Jsdirt
  11
5. 5
  
  OnTheReel
  7
Show More

×

Forums
Main Site
Newsroom
Road Tests
Clubs
Gallery
Activity
- Back
- All Activity
- Search
Tools
More
- Back
- Guidelines
- Staff
- Leaderboard
- Online Users

×

Create New...