Failed Emissions (Texas)

[GalantGreg]

I just failed emissions on my 92 Eclipse Turbo. The NOx was double what it should've been. Standard is 945 and mine read 2310. Will cleaning the EGR fix this problem? Or will I have to buy a new EGR valve?

 

[Burnett03]

Does the car have a working and running cat? Have you tried running the tank down to empty, dumping in two bottles of rubbing alcohol and then filling 2 gallons of 85 octane? Should pass then.

 

[viprez586]

Does the car have a working and running cat? Have you tried running the tank down to empty, dumping in two bottles of rubbing alcohol and then filling 2 gallons of 85 octane? Should pass then.

WTF
DON'T put rubbing alcohol in your fuel system, I believe your talking about E85 as in 85% ethanol, which is pretty much like running alcohol. E85's octane rating is 100~105. You don't want to run straight rubbing alcohol or straight E85 in a completely stock fuel system because it will destroy seals and begin corrosion because of the abundance of ethanol in the fuel. Although E85 does have lubricants in the fuel they are minimal. This is why only certain vehicles can run on E85 and have no problem.

The method I've heard of consists of running your car to approximately 1/4 a tank and fill up 2-3 gallons of E85 and driving at least 20 miles so the ECU can readjust it's fuel trims.

Think of dipping your hand in rubbing alcohol for 20 minutes...now you pull your hand out and let it air dry. Now your hand has dried but not only is it dry but your skin is beginning to loose ALL moisture and eventually your skin cracks and bleeds. I doubt thats what you want occurring in your fuel system minus all the blood.

Typically NOx emissions are controlled by the EGR valve, I would test it and check to make sure the vacuum lines are in place and in good working order. Oh just fair warning, take a peek at the site rules and don't bump your threads.

 

[GalantGreg]

I passed the emission test the second go around. I took off the egr, and cleaned it with throttle body cleaner, I also changed the spark plugs, and the NOx went down to 745.

I also had a crack in my valve cover and had to run to the junk yard to find another valve cover real quick. I don't know if that played a part in the problem