NOX Failure

courtesy of Bob, The Auto Answer Man


Bob,
What is known as a nox failure in emissions testing?
Thank you!
Tiffany B.

Tiffany,
It is called NOX. NOX is short for oxides of nitrogen. It is a by-product of combustion. Basically it means your system is running too lean (not enough fuel). There are not too many ways to correct this problem other than the EGR system and/or replacing the catalytic converter. Make sure that the fuel pressure is correct. To low pressure could also cause this.

Good Luck!
Drive Safely!
Bob, The Auto Answer Man


Have a car care question? Visit our automotive center and see if we've already answered it or a similar question.

Stay Connected with TDS






TDS Pantry Challenge





Subscribe to TDS Newsletters

Join over 250,000 other subscribers!

The Dollar Stretcher
Dollar Stretcher Parents
Dollar Stretcher Tips
Surviving Tough Times
Financial Independence
Savvy Savings at TDS
The Computer Lady
Computer Lady Lessons

Your Email:


View the TDS Privacy Policy.