I am the new and proud owner of a 90 Daytona 3.0L, auto. I went to get a Ma. inspection and it failed emissions.[sm=smiley19.gif] The "Nox" was too high, but it was under on the other ones (by quite a bit!!) Any suggestions on what it might be or what I might try?[sm=wtf.gif]

 

I'm pretty new to emissions Because I've only had to deal with it once and I did fine. What is "Nox"?

 

nox is a form of tailpipe emissions that is porduced when engine cylinder temps are too high. EGR valves are common failure problems, retarded timing, lean air fuel mixtures are a few things that can cause high nox