Failed the Emissions Test
Thread Starter
Melting Slicks
Joined: Nov 2004
Posts: 2,878
Likes: 0
From: Washington
Failed the Emissions Test
Car is a 2004 Z06 with twin turbos, cam, 60lb injectors, no cats, and an SD tune, the maf is not hooked up.
The car failed emissions for the following:
OBD Monitor Readiness Status
- Catalyst: Not Ready
- Evaporative System: Not Ready
- Secondary Air Systemt: Not Ready
- Oxygen Sensor: Not Ready
- Oxygen Sensor Heater: Not Ready
I have EFI Live and was wondering if I can single out certain parameters in C6001 (Engine DTC Processing Enablers) to pass the emissions test.. Also, before I go back and spend $40 for the inspection, can I run the EFI live emissions test to find out if Ill pass the states?
Thanks
Melting Slicks
Joined: Jun 2003
Posts: 2,156
Likes: 0
From: S.W. Ohio
Do they do a visual inspection? If so tuning out the errors will not help. Here in Ohio when we had emissions, there was an option to resister as a Collectors car. I would look into this first...
Good Luck.
Good Luck.
Burning Brakes
Joined: Oct 2001
Posts: 834
Likes: 0
From: Grayson Ga.
[QUOTE=24hr Z06;1567334734The car failed emissions for the following:
OBD Monitor Readiness Status
- Catalyst: Not Ready
- Evaporative System: Not Ready
- Secondary Air Systemt: Not Ready
- Oxygen Sensor: Not Ready
- Oxygen Sensor Heater: Not Ready
Thanks[/QUOTE]
you didn't fail the test, it really never started. you need to simply drive the car, then check the status.. they will go ready. i'll post another link when i find it.
OBD Monitor Readiness Status
- Catalyst: Not Ready
- Evaporative System: Not Ready
- Secondary Air Systemt: Not Ready
- Oxygen Sensor: Not Ready
- Oxygen Sensor Heater: Not Ready
Thanks[/QUOTE]
you didn't fail the test, it really never started. you need to simply drive the car, then check the status.. they will go ready. i'll post another link when i find it.
Burning Brakes
Joined: Oct 2001
Posts: 834
Likes: 0
From: Grayson Ga.
Burning Brakes
Joined: Mar 2003
Posts: 1,156
Likes: 2
From: Arlington VA
As WT99C5 notes you might be able to drive the car and get Readiness monitors to come on-line. I am going through a similar situation with my 03 TR Coupe H/C car right now. I was not able to get emissions to run on three separate occasions in Sept. I had Catalyst, O2, Evap, and Secondayr Air monitors not set. My car is still with my tuner trying to figure this mess out.
A couple things to keep in mind. Are you getting any codes? You are not running Cats so I assume you are running O2 sims otherwise I think you are going to continue to be in trouble getting the readiness monitors to go ready. I believe you at least need to run front O2s and turn rears off and set to not report MIL. I was told by my tuner that the C5 employs certain emissions blocking strategies if certain emission system do not operate properly. This means one system may be malfunctioning and could block other systems from going to ready state.
My tuner found my rear O2s were not setup right and there was a vacuum line left off the back of the intake manifold that contributed to my issues. I am still waiting to get my car back after 3 weeks with my tuner. Drive cycles may solve your issues but then again they may not. Driving my car did nothing and I did not have any codes. Good luck with your car.
A couple things to keep in mind. Are you getting any codes? You are not running Cats so I assume you are running O2 sims otherwise I think you are going to continue to be in trouble getting the readiness monitors to go ready. I believe you at least need to run front O2s and turn rears off and set to not report MIL. I was told by my tuner that the C5 employs certain emissions blocking strategies if certain emission system do not operate properly. This means one system may be malfunctioning and could block other systems from going to ready state.
My tuner found my rear O2s were not setup right and there was a vacuum line left off the back of the intake manifold that contributed to my issues. I am still waiting to get my car back after 3 weeks with my tuner. Drive cycles may solve your issues but then again they may not. Driving my car did nothing and I did not have any codes. Good luck with your car.
Former Vendor
Joined: Jun 2002
Posts: 2,045
Likes: 3
From: Bridgewater Ma
Car is a 2004 Z06 with twin turbos, cam, 60lb injectors, no cats, and an SD tune, the maf is not hooked up.
The car failed emissions for the following:
OBD Monitor Readiness Status
- Catalyst: Not Ready
- Evaporative System: Not Ready
- Secondary Air Systemt: Not Ready
- Oxygen Sensor: Not Ready
- Oxygen Sensor Heater: Not Ready
I have EFI Live and was wondering if I can single out certain parameters in C6001 (Engine DTC Processing Enablers) to pass the emissions test.. Also, before I go back and spend $40 for the inspection, can I run the EFI live emissions test to find out if Ill pass the states?
Thanks
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
I am trying to get mine ready for emmisions testing this week. No codes and headers with high flow cats. All 02 sensors in place. Just checked and I have some readiness tests not ready, 02, catalyst, evap but have only driven once since last EFI Live program download.
Last edited by vsocks1; Oct 6, 2008 at 11:33 AM.
Pro
Joined: Apr 2001
Posts: 589
Likes: 0
From: Torrance CA
Slowhawk,
When you say get rid of them do you mean set them to "Do not report". I tried to get rid them this way but they would not set to ready. Maybe I did not turn them all off. But I tried real hard get that air pump shut off.
Also if you reset the computer by software or battery, you have to achieve certain driving conditions to set each parameter to ready state. It may take a couple of drive cycles. If you do a search on OBDII you can find the recommended drive sequence to set the codes to ready. This is from my own experience. My car is allowed 2 not ready conditions and will still pass.
When you say get rid of them do you mean set them to "Do not report". I tried to get rid them this way but they would not set to ready. Maybe I did not turn them all off. But I tried real hard get that air pump shut off.
Also if you reset the computer by software or battery, you have to achieve certain driving conditions to set each parameter to ready state. It may take a couple of drive cycles. If you do a search on OBDII you can find the recommended drive sequence to set the codes to ready. This is from my own experience. My car is allowed 2 not ready conditions and will still pass.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Eveytime you interupt the comupter --you re-set the readines monitors--all of them !! Interupting means --unhooking the battery--reading codes with a scanner--reading ECM with a data-logger--Or downloading a new tune or copying your existing one--
If you are running true SD tune the cats and the 02's don't come into play--So you need to turn OFF all the enablers to all the pertenant codes relating to both the front and rear 02's--and then all the cat performance ones as well--( heating- switching -low voltage- hi voltage ETC.)
If you are running true SD tune the cats and the 02's don't come into play--So you need to turn OFF all the enablers to all the pertenant codes relating to both the front and rear 02's--and then all the cat performance ones as well--( heating- switching -low voltage- hi voltage ETC.)
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
Eveytime you interupt the comupter --you re-set the readines monitors--all of them !! Interupting means --unhooking the battery--reading codes with a scanner--reading ECM with a data-logger--Or downloading a new tune or copying your existing one--
If you are running true SD tune the cats and the 02's don't come into play--So you need to turn OFF all the enablers to all the pertenant codes relating to both the front and rear 02's--and then all the cat performance ones as well--( heating- switching -low voltage- hi voltage ETC.)
If you are running true SD tune the cats and the 02's don't come into play--So you need to turn OFF all the enablers to all the pertenant codes relating to both the front and rear 02's--and then all the cat performance ones as well--( heating- switching -low voltage- hi voltage ETC.)
Le Mans Master
Joined: Nov 2005
Posts: 6,344
Likes: 22
From: Alexandria VA
If you are running true SD tune the cats and the 02's don't come into play--So you need to turn OFF all the enablers to all the pertenant codes relating to both the front and rear 02's--and then all the cat performance ones as well--( heating- switching -low voltage- hi voltage ETC.)
