C8 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by: CARiD

error code question

Old Jul 12, 2022 | 03:19 PM
  #1  
Marc DeSatnik's Avatar
Marc DeSatnik
Thread Starter
Racer
All Eyes On Me
Photogenic
Photoriffic
Liked
 
Joined: Apr 2016
Posts: 496
Likes: 52
Default error code question

I have a 2020 c8 HTC with AWE Touring Exhaust.

A few months after installation i got an error code. AWE said it was probably a bad valve simulator. We replaced the simulators and the code went away.

after a few months the error code is back. I called On star and they said it was P31CF and P31D1.

Any Ideas?
Reply
Old Jul 18, 2022 | 05:22 AM
  #2  
Boss 57's Avatar
Boss 57
Burning Brakes
 
Joined: Jul 2021
Posts: 937
Likes: 175
From: Raleigh Suburbs
Default

Nothing turns up with a Google search, perhaps you can have your codes read at Autozone etc. just to verify ?
Reply
Old Jul 18, 2022 | 09:01 AM
  #3  
Andybump's Avatar
Andybump
Race Director
15 Year Member
Community Influencer
Community Favorite
Top Answer: 5
 
Joined: Mar 2007
Posts: 11,272
Likes: 8,410
Default

Originally Posted by Marc DeSatnik
I have a 2020 c8 HTC with AWE Touring Exhaust.

A few months after installation i got an error code. AWE said it was probably a bad valve simulator. We replaced the simulators and the code went away.

after a few months the error code is back. I called On star and they said it was P31CF and P31D1.

Any Ideas?
Nothing in the 2020 Corvette Service Manual for either code.
Reply
Old Jul 19, 2022 | 09:54 AM
  #4  
Marc DeSatnik's Avatar
Marc DeSatnik
Thread Starter
Racer
All Eyes On Me
Photogenic
Photoriffic
Liked
 
Joined: Apr 2016
Posts: 496
Likes: 52
Default

Sorry - just found out it's a 2021
Reply
Old Jul 20, 2022 | 10:31 AM
  #5  
Chevy Cust Svc's Avatar
Chevy Cust Svc
Race Director
15 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Mar 2010
Posts: 15,992
Likes: 820
Default

Originally Posted by Marc DeSatnik
I have a 2020 c8 HTC with AWE Touring Exhaust.

A few months after installation i got an error code. AWE said it was probably a bad valve simulator. We replaced the simulators and the code went away.

after a few months the error code is back. I called On star and they said it was P31CF and P31D1.

Any Ideas?
This is certainly not what we like to hear, Marc DeSatnik. Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2020 c8 HTC. To do so, please send an email to socialmedia@gm.com with ATTN: Marc DeSatnik/Corvette Forums in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.

Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
Reply
Old Mar 2, 2024 | 02:39 PM
  #6  
Zephyr602's Avatar
Zephyr602
Advanced
 
Joined: Feb 2023
Posts: 60
Likes: 25
From: Connecticut
Default

Hi Marc! May I know if the problems had been solved? Same thing occurred to me 2 days ago. I'm confusing now lol.
Reply

Get notified of new replies

To error code question



Thread Tools
Search this Thread

All times are GMT -4. The time now is 03:23 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE