fails emissions for nox it was 2100?

1994 TOYOTA CAMRY
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FIORE
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1994 Toyota Camry 32000 miles
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94 toyota fails emissions for nox it was 2100 when it should be below 1006. What needs to be repaired and what is the average cost
Dec 12, 2007 at 1:35 PM
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RASMATAZ
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Have the exhaust gas recirculating valve check out-its purposes it to reduce nitrogen oxides-Nox
Dec 12, 2007 at 2:19 PM
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STRAILER
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Also, a worn out catalytic converter can cause high nox as well. FYI, this guide may be able to help as well.

https://www.2carpros.com/articles/smog-test-inspection-information

Here is the location of the cat so you can have it checked out. Check out the images (below). Let us know how it goes
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Aug 21, 2024 at 2:12 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.