Rejection Sticker with LMS Tune?

[EcoPowerParts]

Does anyone know if the non catted DP's will fail Illinois emissions standards? Soem guys with Evos were saying that the downpipes they had were non catted and were tuned out o2 sensor and passed emissions if thats the case ill go non catted

Google Illinois emissions and read up for your state

[REDSHOCGO]

Just says OBD test. So I googled if peopel have passed and it seems soem have by tuning out their o2 sensor as they do a readiness check. No visual ect. I just wanna make sure before I make a purchase on something.

[EcoPowerParts]

Just says OBD test. So I googled if peopel have passed and it seems soem have by tuning out their o2 sensor as they do a readiness check. No visual ect. I just wanna make sure before I make a purchase on something.

How is the OBD test performed?

The OBD test consists of connecting a scan tool to a vehicle's on-board computer to determine the OBD system status (readiness checks), to determine whether the Malfunction Indicator Light (MIL) is commanded to be illuminated, and to retrieve any stored diagnostic trouble codes.

Vehicles will pass the OBD test if the OBD system is working, all required emissions system readiness checks have been completed, and the MIL is not commanded to be illuminated.

Vehicles will fail the OBD test if the MIL is commanded to be illuminated and diagnostic codes are present. Vehicles will also fail if the OBD system is inoperable or if the OBD connector is missing, damaged, or inaccessible.

You will fail if you don't have emissions readiness checks passing.

http://www.epa.state.il.us/air/vim/about.html

[REDSHOCGO]

So if the o2 sensor is tunes out it essentially will be non existent to the test and the overall test will pass as ready?

[EcoPowerParts]

So if the o2 sensor is tunes out it essentially will be non existent to the test and the overall test will pass as ready?

No you will fail readiness, it checks for the rear O2's and makes sure they are there. If they are tuned out they never come ready.

[IHeartGroceries]

If you use a tuner or other similar method, and the device is able to disable MIL codes, it is simply removing the trigger to illuminate the MIL. But, as stated, you'll still have a not ready present for emissions testers.

I learned that the hard way.

Sent from my SM-N900V using Tapatalk

[adamantium]

No emissions in Florida, but the stage 1 flash for my VW would throw CEL without O2 sensor spacer on catless downpipe. Stage 2 deletes second O2 sensor and car always passes readiness when I scan it.

[Mikesb]

Sorry - a little foggy on all this, but my question is - are all my 02s on and functioning?

The last tune I installed from LMS was for Meth, then I installed PPE downpipes w/cats. I called LMS and asked if I need a new tune for D/P's and they said if I'm not throwing codes I'm good to go

[EcoPowerParts]

Sorry - a little foggy on all this, but my question is - are all my 02s on and functioning?

The last tune I installed from LMS was for Meth, then I installed PPE downpipes w/cats. I called LMS and asked if I need a new tune for D/P's and they said if I'm not throwing codes I'm good to go

If you installed PPE downpipes with cats you shouldn't be throwing a code. Does your tune have the rear O2 turned off, no idea but you can go to any Checker/Auto Zone, they have scan tools and have them check if all your readiness checks are passed.

[Courier6]

As info: readiness can be achieved on the 13 SHO with 20 minutes spent at highway speed, 15 minutes stop and go with 3 or more periods of 30 seconds plus at idle.

I went through this several times trying to get through TN emissions testing. I may have the highway and stop and go time flip flopped. I did all my idle times in "P" for park and went at least 2 minutes each time.

I did return to stock before I did the drive cycle and passed emissions but immediately following went back to the Livernois tune and have not thrown any codes since. I has been several months now.

I learned that after clearing the codes then performing the drive cycle they will come back in if nothing was done to correct the issue.

[BiGMaC]

Courier6 is right... called a driving cycle in the manual... it does sometimes take 40-50 min... but if the downpipe adjustment LMS made...as commonly is done... was to turn off the third O2 sensor as 4DR suggests might be the case, it will still fail readiness because it will be reported on the machine as a malfunction in the emissions controls... so be sure all the O2 sensors are working.

[FoMoCoSHO]

Sorry - a little foggy on all this, but my question is - are all my 02s on and functioning?

The last tune I installed from LMS was for Meth, then I installed PPE downpipes w/cats. I called LMS and asked if I need a new tune for D/P's and they said if I'm not throwing codes I'm good to go

If you installed PPE downpipes with cats you shouldn't be throwing a code. Does your tune have the rear O2 turned off, no idea but you can go to any Checker/Auto Zone, they have scan tools and have them check if all your readiness checks are passed.

Torque Pro will display that data also.

[schalacker]

Just as an update to this thread:

LMS Cat'd pipes were replaced with Stock units.  LMS 93 tune was put back to Stock tune.  Drive-cycle was completed (~100 miles or so).

Went to the inspection station and passed.  No issues.

Since this would end up being an annual DP-swap, i'm going to put the LMS-Cat'd units up for sale.  PM me if interested.

Thanks again for all the help.

[SHOdded]

Maybe LMS can take them in trade for their updated emissions-friendly pipes?  For a reasonable cost?

[SwampRat]

Just as an update to this thread:

LMS Cat'd pipes were replaced with Stock units.  LMS 93 tune was put back to Stock tune.  Drive-cycle was completed (~100 miles or so).

Went to the inspection station and passed.  No issues.

Since this would end up being an annual DP-swap, i'm going to put the LMS-Cat'd units up for sale.  PM me if interested.

Thanks again for all the help.

I would contact LMS about replacing yours with the new ones they anonced on this forum  with  the better cats on them.