| timka86 |
06-09-2008 08:44 AM |
the 6 speed and IL Emissions testing
My license plates sticker expires this month and they don't let you get a new on anymore until you pass emissions. I don't have any check engine lights, I disabled the EGR 403, 404, 405 codes from being reported (EGR Delete) and a bunch of transmission codes since I no longer have the automatic.
So I go to emissions and they reject me, the print out says drive for a few days and come back, I had 3 systems say not ready. (EGR Circulaiton, Oxygen something or other, and Catalytic Efficiency). So after some pondering, I thought to try and put my car back into drive (as it was in neutral the whole time) as the system may be set to only run these tests when in drive. I was right, that fixed the Oxygen something or other to say completed. But I still had two more that say not ready.
So yesterday, I plugged in my old EGR valve, without actually installing it, just plugged in the harness and zip-tied it in place. and it fixed my EGR system to say Completed, which leaves me only one more test to complete. The downside is that it threw a P0401 code. But there is good news, I had worried about not passing emissions with the EGR not there. so i did some looking up on the DHP forum. I recalled someone mentioning that not all the systems were required to be ready in order to pass. and I had looked it up online and that's correct.
http://www.epa.state.il.us/air/vim/faq/obd.html
Quote:
A vehicle can have up to twelve monitors built into the OBD computer system. The most common monitors are:
Continuous
Misfire
Fuel System
Comprehensive Components
Non-Continuous
Oxygen Sensor
Heat Oxygen Sensor
Catalyst Efficiency
Evaporative Emissions System
EGR System
Secondary Air System
PCV System
Q. How do readiness monitors affect the automotive repair industry?
A. In the past, technicians routinely cleared codes – either before and/or after performing repairs -- as a routine part of the repair process. Clearing codes resets all monitors to a “not ready” status. Some monitors are easily run during normal driving; however, others can take a long time to run. This can cause problems if the vehicle has to return to a test station for a re-test because vehicles can not be tested if a sufficient number of monitors have not run.
Remember, vehicles are rejected when more than two non-continuous readiness monitors are “not ready” for 1996 to 2000 model year vehicles, or when more than one non-continuous readiness monitor is “not ready” for 2001 and newer model year vehicles. Additionally, the catalyst monitor must be “ready” at the time of any re-test after a vehicle failed an initial test for any catalyst code.
By clearing codes during the repair process, shops and technicians may find themselves in situations where the customer takes the vehicle back to an emissions station for a re-test after repairs have been made, but the vehicle is rejected at the station because a sufficient number of monitors are not ready. Therefore, shops and technicians should seriously reconsider the practice of clearing codes on OBD equipped vehicles when that vehicle has to return for an emissions re-test. Shops can protect their Repair Effectiveness Index (REI) by making sure that a sufficient number of monitors are “ready” and bringing vehicles back for a re-test after repairs are complete. After the vehicle passes the re-test, the vehicle can be returned to the customer.
|
note, being rejected for emissions testing is not the same as failing the test. Rejected is because the PCM is not ready, fail is when you get a CEL because something is wrong.
The tests themselves only have 2 results, ready and not ready. Now, whether the test was passed or failed will warrant whether you have a CEL and a code thrown.
I thought I'd share this for all, as it applies to automatics too if you have some mods that conflict with emissions. |
