Ask Your Car Question. Car Experts Answer You ASAP.

(Not a Car Question?)

Emissions Test (NOX) Failed
Sent to Car Experts December 31 02:40 PM

I have a 1995 Chev Camaro 3.4L FI. I have replaced the O2 sensors and the EGR valve ($279), cleared the trouble codes, and the EGR valve trouble code solenoid #3 keeps coming up. Also recently had the emissions tested, NOX levels were too high and I failed. Would a higher octane fuel help to eliminate these problems, especially the NOX results on the emissions test?

Customer (name blocked for privacy)
Status:  Closed   Value: $5
Answer
December 31 5:14 PM (2 hours and 34 minutes and 10 seconds later)
         
ACCEPTEDCheck Mark
  Nox is a result of your exaust being too hot it causes a chemical reaction that makes extra oxegen atom to attach itself to the co2 that the exaust is creating the EGR valve is uassly the culpret for this if you are still getting codes for it maybe you sould  beleve them and check the #3 solenoid also check to make sure the port under the EGR valve isn't clogged.
PictureMarc -- Technician -- 98% Positive Feedback on 1029 Car Accepts
33 years exp. automotive repair NYS emisisions repair cert.
Think you can answer this question?
Login or Become an Expert

Related Answers

 

DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.

Just Answer! > Car Repair