Passing CA smog with tune

Danny2v · Aug 14, 2019

I have a 02 gt with bolt ons and tune. Every bolt on is legal and carb legal other then my bama tune. I was wondering if a week prior to my smog check, I upload the stock tune, drive it for a few 100 miles to set the monitors, will I pass smog? Or does the smog system show previous tunes causing me to fail? Just for clarity, I will remove the tune awhile before the smog check to make sure the monitors are complete

weendoggy · Aug 14, 2019

As long as every bolt on is CARB approved and you have documentation that won't pose a problem. You're suppose to have the EO sticker under the hood. However, the bama tune will and it won't pass inspection. Also, if you don't have the appropriate exhaust for the car, it won't pass. This includes an X or Y pipe.

If you have everything CARB legal except the tune, put the stock tune in and drive for a few days at combination driving street and highway for sensors to stabilize. This is the same as if you cleared codes or disconnected your battery.

Danny2v · Aug 14, 2019

weendoggy said:
As long as every bolt on is CARB approved and you have documentation that won't pose a problem. You're suppose to have the EO sticker under the hood. However, the bama tune will and it won't pass inspection. Also, if you don't have the appropriate exhaust for the car, it won't pass. This includes an X or Y pipe.

If you have everything CARB legal except the tune, put the stock tune in and drive for a few days at combination driving street and highway for sensors to stabilize. This is the same as if you cleared codes or disconnected your battery.

I do have a x pipe but it is a cut and weld x pipe so I still have my original cats same location as factory... shouldn't be a issue right?

weendoggy · Aug 14, 2019

If you have all 4 O2 sensors, 1 before 1 after, on each side I don't see a problem. Stock has a H pipe.

Danny2v · Aug 14, 2019

Y

weendoggy said:
If you have all 4 O2 sensors, 1 before 1 after, on each side I don't see a problem. Stock has a H pipe.

Yup, 4 O2's, 4 cats... I had the h pipe when I bought the car, and I really like the x pipe sound but being in the worst state for car enthusiasts, catless was a little too risky. So instead I cut the crossover and welded a x

weendoggy · Aug 14, 2019

Very true, but you can change every 2 years on some things. The tune is the worst part because OBDII scanning from 2000 on has everything in the computer, no sniffing or even viewing if it is clean.

Danny2v · Aug 14, 2019

weendoggy said:
Very true, but you can change every 2 years on some things. The tune is the worst part because OBDII scanning from 2000 on has everything in the computer, no sniffing or even viewing if it is clean.

The good news is none of my mods rely on the tune to run properly, meaning I can flash the factory tune with all the kids and have 0 problems. Couple days of driving to set everything, and should pass with flying colors

Passing CA smog with tune

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