Uprev Tune Issue

Originally Posted by Pelemenii My first thought also was that the cats are failing, but my Z is very new only 27k miles so I didn’t think it was that,

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Tuning
Uprev Tune Issue

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10-05-2020, 10:54 AM

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SouthArk370Z

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Quote:

Originally Posted by Pelemenii

My first thought also was that the cats are failing, but my Z is very new only 27k miles so I didn’t think it was that, as they should have a lot of juice left in them. I got the burble map with stock cats because I wanted to hear how “bad” or “quiet” it sounds as everyone always says. I was planning to get test pipes some time down the road.

Doesn't matter if it's straight off the factory line or has 100k miles on the odometer -- running raw fuel through a catalytic convertor will cause it to stop functioning properly. The burble-and-pop mode runs raw fuel through the cats. The outcome was inevitable.

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