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

Emission readiness? Smog test failed

Thread Tools
 
Search this Thread
 
Old Jun 6, 2020 | 02:47 PM
  #1  
jrhoades's Avatar
jrhoades
Thread Starter
Instructor
 
Joined: Aug 2019
Posts: 152
Likes: 90
Default Emission readiness? Smog test failed

Bought the car out of state, had to get it smogged here in [insert epithet representing California]

The car failed! It's been driven what I figured would be plenty but the O2 and evap systems were both still showing as unready. Battery has not been disconnected.

I've heard some other manufacturers provide clues in how the car is doing in its readiness by how it blinks various dash lights at startup.

Are there any similar telltales in the C8? Is there any way for me to check for readiness myself before bringing it back in?

Thanks
Reply
Old Jun 6, 2020 | 05:56 PM
  #2  
Mike's LS3's Avatar
Mike's LS3
Safety Car
15 Year Member
Liked
Community Favorite
Top Answer: 1
 
Joined: Nov 2007
Posts: 4,433
Likes: 873
From: Bay Area CA
Default

Originally Posted by jrhoades
Bought the car out of state, had to get it smogged here in [insert epithet representing California]

The car failed! It's been driven what I figured would be plenty but the O2 and evap systems were both still showing as unready. Battery has not been disconnected.

I've heard some other manufacturers provide clues in how the car is doing in its readiness by how it blinks various dash lights at startup.

Are there any similar telltales in the C8? Is there any way for me to check for readiness myself before bringing it back in?

Thanks
In CA, the evap can show incomplete, but not the 02's. Search emissions drive cycle and follow procedure. You do need to start up cold with AC on to put load on the system. Just get the 02's complete.

Last edited by Mike's LS3; Jun 6, 2020 at 05:57 PM.
Reply
Old Jun 7, 2020 | 05:09 AM
  #3  
SL41's Avatar
SL41
Instructor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2008
Posts: 220
Likes: 111
From: az
Default

[QUOTEIs there any way for me to check for readiness myself before bringing it back in?

Thanks[/QUOTE]
get a OBD reader, it will tell u
Reply
Old Jun 7, 2020 | 05:43 AM
  #4  
jrhoades's Avatar
jrhoades
Thread Starter
Instructor
 
Joined: Aug 2019
Posts: 152
Likes: 90
Default

Is there a consumer-grade scanner known to work on the C8?
Reply
Old Jun 7, 2020 | 10:58 AM
  #5  
SL41's Avatar
SL41
Instructor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2008
Posts: 220
Likes: 111
From: az
Default

get one at walmart, if it doesn't work, just return it. you can always stop by autozone, they will do it for free
Reply
Old Jun 7, 2020 | 01:34 PM
  #6  
chucks04vette's Avatar
chucks04vette
Advanced
10 Year Member
 
Joined: May 2008
Posts: 71
Likes: 2
From: Bay Area California
Default

I have bought 2 cars out of state within the last 2 years. Before the O2 turned on in both cars I had about 1200 miles on each car.
Reply
Old Jun 10, 2020 | 04:46 PM
  #7  
RichieRichZ06's Avatar
RichieRichZ06
Race Director
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2005
Posts: 14,553
Likes: 1,548
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
Default

How many miles on the car? We've already seen a couple that required over 1,000 before the monitors cleared.
Reply
Old Jun 10, 2020 | 06:21 PM
  #8  
jrhoades's Avatar
jrhoades
Thread Starter
Instructor
 
Joined: Aug 2019
Posts: 152
Likes: 90
Default

Yeah, not that many miles. Looking to get a temporary operating permit since the temp tags expired. Have a reader now which shows me status so I'll know when it's ok before taking it in.

For others that end up in this boat, there's a TSB on the matter. Thanks to user LJT for letting me know about it -
https://static.nhtsa.gov/odi/tsbs/20...71875-9999.pdf
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-3

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-4

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

 Joe Kucinski
story-5

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
Old Jun 11, 2020 | 04:36 PM
  #9  
RidgeRunner0207's Avatar
RidgeRunner0207
Pro
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: Aug 2014
Posts: 611
Likes: 189
From: Pawleys Island, South Carolina
Default

Register it in Montana under an LLC, avoid CA and their taxes, high registration costs and general nonsense.

Good Luck
Reply
Old Jun 15, 2020 | 10:31 AM
  #10  
Second Vette's Avatar
Second Vette
Drifting
 
Joined: Dec 2013
Posts: 1,787
Likes: 646
From: Retired to Mississsippi.
Default

Originally Posted by RidgeRunner0207
Register it in Montana under an LLC, avoid CA and their taxes, high registration costs and general nonsense.

Good Luck
The CHP loves pulling over Cars with out of State Plates, especially during Rush Hour. If you're driving to work, you aren't a Tourist on your way to Disneyland. You have 30 Days to Register your Car if you move to CA.

Ain't no way that Commiefornia is going to miss out on all that Tax and Registration Revenue. They have a lot of Five Year Plans and Illegal Invaders to pay for.

I bought my brand new 2014 C7 out of State. When I was told I had to Smog the Car I couldn't believe it and neither could the guy at the Smog Station. (It passed Smog thank God)…
Then it had to be inspected by the DMV before I was afforded the privilege of handing over nearly $5,000 to get it Registered.
Reply
Old Jun 18, 2020 | 02:08 AM
  #11  
Lpe403's Avatar
Lpe403
Pro
10 Year Member
 
Joined: Sep 2013
Posts: 581
Likes: 9
From: CA
Default

Originally Posted by RidgeRunner0207
Register it in Montana under an LLC, avoid CA and their taxes, high registration costs and general nonsense.

Good Luck
Cops in CA look for MT plates, plus the DMV has a webpage that encourages citizens to report scofflaws by entering their plate #s. If you do the out of state thing you better be able to back it up with proof of residence.
Reply

Get notified of new replies

To Emission readiness? Smog test failed





All times are GMT -4. The time now is 10:36 AM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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