[BigEnos]

So, my Maxima *just* missed passing emissions last time. MD tests 3 things, NOx, CO, and HC. HC it passed but NOx and CO it was just out of spec on. I don't have the specific numbers here, but I could get them if it would be helpful. Any suggestions about what I can do to help the car pass? I am already planning to install a new O2 sensor (car probably needs it anyway), and the car had a new pre-cat and cat about 2 years ago. AFAIK they are still good. I've heard that a little alcohol in the gas tank will help. Any truth to it? Any other tricks like that? Like I said, it was close so just a little "bump" would probably do it.

TIA

This post has been edited by BigEnos: Mar 9 2006, 04:55 PM

[00 SS]

I was my experience that the alcohol helped reduce HC, but that was on an old carbureted car. With fuel injection, the system seems to compensate and add more fuel to compensate for the oxygen in the alcohol. Usually an oil/filter change, fresh air filter and new plugs are all it takes on my older cars. How well does it run? Any blow by issues? Are the cap, rotor and wires in good shape (assuming it has a distributer)? Have you cleaned the throttle body air horn? The O2 sensors are probably a good idea.

This post has been edited by 00 SS: Mar 9 2006, 05:16 PM