C5 Scan & Tune Corvette Onboard Diagnostics, Service Advice, Dyno Tuning, Fuel Management, Tuning Software, LS1 Edit, AutoTap, Diablo
Sponsored by:
Sponsored by: Kraken

ECM "Not Ready" so I failed emission test

Thread Tools
 
Search this Thread
 
Old 03-17-2003, 02:56 PM
  #1  
mhefner
Drifting
Thread Starter
 
mhefner's Avatar
 
Member Since: Feb 1999
Location: DFW TX
Posts: 1,561
Likes: 0
Received 0 Likes on 0 Posts
CI-3 Show Winner
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In V Veteran

Default ECM "Not Ready" so I failed emission test

I need help in determining what this variable "Not Ready" is and how to modify it. I can't find anything in LS1 edit. What is happening in Texas they now just plug your computer into a scanner type device. It verifies that there are no codes and that all systems are functioning normally. Well in my case it says that my Cat, Heater, and Evaporator, are "not ready". So they can't test them and hence my failure. Does anyone know where in the ECM you can modify this value OR what causes this value to be "ready". The dealer thinks I need to just drive the car about 40 miles. Because this does occur after an ecm has been reset. Which in the first case was the issue because i reset the computer as I pulled up to the shop. And they knew I did because at that time all parameters read "not ready". After driving around 20 miles I'm down to 3 parameters still "not ready". I did a bunch of driving this weekend so hopefully it will be ready, but in case its not I thought I better get prepared to find out this is and if any one else has seen it.

thanks
Old 03-18-2003, 01:55 AM
  #2  
66ImpalaLT1
Drifting
 
66ImpalaLT1's Avatar
 
Member Since: Apr 2001
Location: Austin TX
Posts: 1,763
Received 23 Likes on 12 Posts

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

You have to do quite a bit of driving to get them all to go to ready.

EFILive and Ease scan tools can check this.

Eric
Old 03-18-2003, 08:55 AM
  #3  
ToplessTexan
Safety Car
 
ToplessTexan's Avatar
 
Member Since: Aug 2000
Location: Murphy TX
Posts: 4,154
Likes: 0
Received 1 Like on 1 Post
Cruise-In II Veteran

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

Mike, some of the tests require multiple ignition cycles not just lots of drive time. Worse, some tests require multiple cold starts to complete. I think you can get by with up to two not ready indications (they occur normally and are different from outright failures), but that's worth what it cost you.
Old 03-26-2003, 11:04 AM
  #4  
mhefner
Drifting
Thread Starter
 
mhefner's Avatar
 
Member Since: Feb 1999
Location: DFW TX
Posts: 1,561
Likes: 0
Received 0 Likes on 0 Posts
CI-3 Show Winner
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In V Veteran

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

FYI,
after driving the car about 400 miles, I finally passed. The care still was "not ready" in two catagories but as was mention by topless you can have up to 2 areas not ready. It was 3 that was causing me to fail.
Still not sure why all areas are not ready but hopefully I will not have to worry about it, at least till next time. :D
Old 03-30-2003, 09:22 PM
  #5  
ProFusion
Advanced
 
ProFusion's Avatar
 
Member Since: Nov 2000
Location: USA
Posts: 88
Likes: 0
Received 1 Like on 1 Post

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

just where exactly did they do the connection to read the ECM?
Old 03-31-2003, 11:51 AM
  #6  
mhefner
Drifting
Thread Starter
 
mhefner's Avatar
 
Member Since: Feb 1999
Location: DFW TX
Posts: 1,561
Likes: 0
Received 0 Likes on 0 Posts
CI-3 Show Winner
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In V Veteran

Default Re: ECM "Not Ready" so I failed emission test (ProFusion)

underneath your dash is the connector. ITs the same place any of the tuners plug in to.
Old 04-04-2003, 10:06 PM
  #7  
geekracer
Melting Slicks
 
geekracer's Avatar
 
Member Since: Mar 1999
Posts: 2,499
Likes: 0
Received 0 Likes on 0 Posts

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

You can check the status with autotap.
Old 04-06-2003, 10:44 AM
  #8  
vetterdstr
Team Owner
 
vetterdstr's Avatar
 
Member Since: Mar 1999
Location: San Jose/Bear Valley CA
Posts: 28,753
Received 8 Likes on 7 Posts
CA Events Coordinator

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

Where you made a mistake was to reset the computer before going to the smog station... it takes many many cold startups to operating temp to get those values back in the computer. I am glad it finally passed. :)

vetterdstr :cheers:
Old 04-07-2003, 12:25 AM
  #9  
TooManyIDs
Safety Car
Support Corvetteforum!
 
TooManyIDs's Avatar
 
Member Since: Dec 1999
Location: Plano TX
Posts: 4,202
Received 2 Likes on 2 Posts

Default Re: ECM "Not Ready" so I failed emission test (mhefner)

As an fyi, while playing with EASE, I also noticed it reports miles since last PCM reset.

The tests, and their status, are listed under the I/M section of EASE.


[Modified by TooManyIDs, 11:26 PM 4/6/2003]

Get notified of new replies

To ECM "Not Ready" so I failed emission test




Quick Reply: ECM "Not Ready" so I failed emission test



All times are GMT -4. The time now is 04:55 AM.