2005 Yukon 5.3l Tune Question

[Arkansaw]

I just bought a 2005 GMC Yukon 5.3l SLT 2WD.

It already had aftermarket exhaust on it.

Recently the check engine light came on. Codes P0430 and P0420. Apparently about poor catalytic converter function.

Upon further inspection I find they installed true dual exhaust and removed the cats entirely.

Do you have a tune that can eliminate those error codes so it doesn't trigger the check engine light while also making some performance improvements?

What would be the most reasonable way in $$$ to do that?

Thanks,

Andy

 

[stevek]

I just bought a 2005 GMC Yukon 5.3l SLT 2WD.

It already had aftermarket exhaust on it.

Recently the check engine light came on. Codes P0430 and P0420. Apparently about poor catalytic converter function.

Upon further inspection I find they installed true dual exhaust and removed the cats entirely.

Do you have a tune that can eliminate those error codes so it doesn't trigger the check engine light while also making some performance improvements?

What would be the most reasonable way in $$$ to do that?

Thanks,

Andy

You'll need to get cats or dummy sensors. Either way, it's illegal.

 

[JennaBear]

The clean air act prohibits modification of that type for an on highway vehicle. Please shoot us an email ([email protected]) with any further questions.

 

[Arkansaw]

Well, I didn't remove the cats. It was like that when I bought the vehicle. I'm just trying to find the most cost effective working solution.

Arkansas doesn't have vehicle inspections, so legal ramifications are largely irrelevent.

 

[JennaBear]

No worries, we can discuss via email.

 

[Arkansaw]

Thanks. Email sent. (I'm too new to PM)

 

[JennaBear]

Not a problem, we prefer emails over ***. We get 100s of emails everyday, and answer them in the order they were received-we will get back to you shortly.