Go Back   Chevrolet Forum - Chevy Enthusiasts Forums > General Discussion Forums > General Tech
Sign in using an external account
Register Forgot Password?
Search

General Tech Good at troubleshooting? Have a non-specific issue? Discuss general tech topics here. IF YOUR QUESTION IS SPECIFIC TO A CERTAIN MODEL, IT DOES NOT GO IN THIS SECTION.

Reply
 
 
 
 
LinkBack Thread Tools
  #1  
Old 10-08-2011, 06:39 PM
CF Beginner
 
Join Date: Oct 2011
Posts: 2
Default OBDII Monitors not ready...

2006 Impala LT 3500 engine. 97,000 miles.
It had a code P0172 (Bank one rich) Checked front spark plugs, cleaned MAF, checked fuel pressure (60psi) It runs great. I thought I had a bad downstream oxygen sensor...it barely moved on the scanner. Changed it, and reset all codes with the scanner.
Now when I drive it to get the monitors ready, (Htr, Cat, Evap, O2) I get no responce. I know the drive cycles, but it seems to not want to budge. It does go into closed loop, and the data looks good.
I've got around 60 miles into it, after the re-set.
Could I be looking at a re-flash? Any ideas???
So far, no check engine light, ....yet...
Register today for free or log-in if already registered to remove this ad!
Reply With Quote
  #2  
Old 10-08-2011, 09:42 PM
CF Veteran
 
Join Date: Mar 2011
Posts: 1,706
Default

Welcome to the forum. It's not how many miles but number of drive cycles under various conditions that matter. It may take 2 to 6 trips before all the OBD readiness tests are complete. Unless you have pending trouble codes, there's nothing you can do but wait, err, drive.
Reply With Quote
  #3  
Old 10-09-2011, 09:57 AM
CF Beginner
 
Join Date: Oct 2011
Posts: 2
Default

I understand...but,
I have worked on other GM's and in a similar situation, have had to clear codes and drive. Usually the Htr monitor is the first to go ready. I start it cold, apply the headlights, heater, and rear defrost and let it warm up. Then I drive it, hold around 45 to 50 mph for 5 miles or more with 1/4 to 3/4 tank full. I do the coast to zero and then let it sit.
Anyways....I almost always get one monitor to clear by this point, if not all, ...but this won't budge.
Reply With Quote
Old 10-09-2011, 09:57 AM
 
 
 
Reply

Tags
2006, cat, chevy, codes, complete, evap, howtogetobdiimonitorready, htr, monitor, monitors, o2, obd2, obdii, reader, ready, symbol


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Join Chevroletforum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 11:22 PM.

Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.

Emails Backup