Major problem
Thread Starter
Intermediate
Joined: Nov 2013
Posts: 48
Likes: 3
Melting Slicks
Joined: Aug 2014
Posts: 2,587
Likes: 873
http://www.obdii.com/drivecycle.html
Unless your sensors are broken, there is no need to buy any equipment nor run HP tuners. The site above lists the conditions required to get your ODB2 readiness monitors into a Ready state.
HP tuners while used for tuning can also check the state of the readiness monitors as well as Autotap. This will save you from wasting your time doing an emissions test when the car is not ready. Unless the car is missing the sensors, even a heavily modded car will eventually activate all sensors to Ready.
Unless your sensors are broken, there is no need to buy any equipment nor run HP tuners. The site above lists the conditions required to get your ODB2 readiness monitors into a Ready state.
HP tuners while used for tuning can also check the state of the readiness monitors as well as Autotap. This will save you from wasting your time doing an emissions test when the car is not ready. Unless the car is missing the sensors, even a heavily modded car will eventually activate all sensors to Ready.
Last edited by SladeX; Mar 17, 2017 at 10:21 PM.
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Thank you!
Chuck has saved me from lighting the car on fire! After countless "shops" and tuners told me " that's as good as it gets " I was about to say enough is enough!!! Chuck sold me AutoCal and together we were able to troubleshoot! Best investment to date, not only the AutoCal but with Chuck!!
THANKS CHUCK!
THANKS CHUCK!
Chuck CoW
Le Mans Master
Joined: May 2015
Posts: 5,187
Likes: 1,216
From: Las Vegas Nevada
I meant heated 02 sensors. It has been driven. 25 miles , 50 miles, 100 miles. Still the same. No check engine light came on. AND no codes to erase and start all over again. I took it to Chevrolet dealer for the problem. Same result. NO codes. Even their high dollar scan machine show the same as my hand -held scan tool. NO CODES to reset. They are puzzled also. They ran it through Chevy recommended procedure. Same results. I simply don't know what to do. It has been trouble free for 11 years.
