I recently went in to get emissions checked to renew the plates and it failed.

The car is lightly modded. Catback exhaust, ets hfc, and a stage 2 cobb ap ots map. Results from the check are

OBD Communication: Fail
Reason: Cat. Conv. Unsupported Programming Error

Not really sure what that means and how to fix it.

I have the rear o2 hooked up and read some threads with people passing without issues with the OTS stage 2 map.

I haven't been able to find much on cat. conv unsupported programming error though. Any help appreciated.

 

Hey im also in the stl small world. But my evo failed for the same thing. I had to u uninstall the cobb accessport completely then i drove it for about a week and it passed just fine after that. My mods are intake and exhaust.

 

What's up STL bros? But if you uninstall the cobb make sure you do not do anything but putt putt around, otherwise you risk damage to your car

 

Just did my inspection 20 minutes ago and passed! Car is with ap v3 map 1 v403, k&n drop in filter, turbosmart bov, megan racing catback. Nothing was uninstalled smooth as a butter, NY state inspection.

 

Theres two options on the cobb ap, disable rear o2 or disable rear o2 CEL.

I think you need to use disable rear o2 CEL instead of turning it off completely in order to pass emissions.

 

Hey I have this issue as well. I'm new to tuning. My GSR was tuned by the previous owner I have downloaded the ROM and it is ROM TephraXMOD V1.

what I don't know is what to change to let me pass emissions.

help?

 

Unless the car is heavily modified just remove the software and put the ecu back to stock and drive it for a few days and it will pass just fine.

 

and if it is heavily modified? I'm not trying to be difficult I'd just like to learn. To understand what I'm seeing in ECUFlash. or if you can point me in the right direction I could just read the information I need

 

If it's heavily modified then the stock tune is not safe for it to run on, which will damage the engine

 

well I'd like to play it safe and not go back to stock tune. guess ill start another thread if I cant find a similar situation.

 

Are you on cobb or opensource? If it's open source it's easy to do emissions, I actually just got mine done today with no problems

 

Ok, I'm open source.

 

Okay, Then there is a patch that you can enable in the tune that will show that everything is ready, were you ever able to get a rear o2?

 

In the original post i thought it said that he had a cobb ap stage 2.

 

He was, I was helping Hawk here instead of having him open another thread since the Cobb Discussion seemed to have died out