New Guy

[XIIIX]

Hello Everyone,

I just picked up a 2009 coupe with a handful of mods. The previous owner may be on here. I'm here to figure out how to get it to pass smog.

-David

[Viperenvy]

Run a Carfax and call the local chapter presidents.

Make sure you are a paying member - always makes those Presidents a little happier to help

[99RT10]

Best way to get past SMOG is to move to a state where SMOG is a dirty word.

[Hathoway]

Wakebum's ride?

[Fatboy 18]

We will get it to pass Smog tests if you Bring it to England

Failing that Get to know your Smog inspector well, take him out for Dinner

[ACR-ISH]

Hello Everyone,

I just picked up a 2009 coupe with a handful of mods. The previous owner may be on here. I'm here to figure out how to get it to pass smog.

-David

Why is it currently failing? Give us some details so we can help you out.

[JonB ~ PartsRack]

Why is it currently failing? Give us some details so we can help you out.

Bingo.

CEL? No cats? Bad cats? Race PCM? Other CEL mods?

Have you had it to Normandin Dodge San Jose? Viper Savvy

[RedTanRT/10]

Your signature says mopar ECU, plus other mods

You need to swap out to the stock ECU, clear all codes, then get the emissions system to read ready. Assuming you have O2 sensors in place

With the headers and stock ECU you will eventually trip a CEL. Use moderate throttle in every gear when u swap the ECU. Do not let the car bog in a higher gear

[JonB ~ PartsRack]

Dang, I seldom think to read down into the fine print at info in signature !

What He Said, and no small task...... may take several attempts

Your signature says mopar ECU, plus other mods

You need to swap out to the stock ECU, clear all codes, then get the emissions system to read ready. Assuming you have O2 sensors in place

With the headers and stock ECU you will eventually trip a CEL. Use moderate throttle in every gear when u swap the ECU. Do not let the car bog in a higher gear

[ky13]

Congrats! I'm guessing Wakebums old car https://driveviper.com/forums/members/4206-wakebum2507

[ACR-ISH]

Congrats! I'm guessing Wakebums old car https://driveviper.com/forums/members/4206-wakebum2507

Yup... that's his!



Was...

[XIIIX]

Yep! He poured his heart and soul into this thing. It's perfect.

And yes, it's because it has the MOPAR ECU. I'm not sure if the O2's are in or not, haven't had the chance to jack it up just yet. Hopefully I don't have to swap the stock exhaust every time I need to pass smog.

[Steve M]

Yep! He poured his heart and soul into this thing. It's perfect.

And yes, it's because it has the MOPAR ECU. I'm not sure if the O2's are in or not, haven't had the chance to jack it up just yet. Hopefully I don't have to swap the stock exhaust every time I need to pass smog.

From the pictures I've seen, it looks like the post-cat O2 sensors are installed. See the pics in this post specifically:

https://driveviper.com/forums/thread...l=1#post388338

I'm guessing the heat wrapped wires in the 2nd pic in that post are going to the O2 sensor.

[RedTanRT/10]

And yes, it's because it has the MOPAR ECU. I'm not sure if the O2's are in or not, haven't had the chance to jack it up just yet. Hopefully I don't have to swap the stock exhaust every time I need to pass smog.

It will never pass smog with the Mopar off-road ECU. 15 minutes to swap, but getting the stock emissions to read ready may take some time.

[Rmj]

Congrats on a beautiful car! Welcome!

[viperBase1]

It will never pass smog with the Mopar off-road ECU. 15 minutes to swap, but getting the stock emissions to read ready may take some time.

I can attest to that!

Stock ECU is required.
Then you might come across some info. about the "Dodge/Mopar Drive Cycle" process to get the 02 sensors to read READY.
I found this near impossible to achieve.. dangerous too on public roads.
I put a couple hundred miles on the car trying to execute the process. Never worked.
All you can do is rack up the drive cycles.

Congrats on the car and good luck!