Failed Emissions...Again
03-27-2009, 11:48 AM
#21
03-27-2009, 12:31 PM
#22
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I find it funny that you have to go thru some stupid hoops(like driving your car around to "warm up") for it to pass emmissions. They should really change the way or what they test for.... makes me glad I live in a non emission state.... 
Although I have been thinking about moving to Texas....
03-27-2009, 05:11 PM
#23
On The Tree
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I just love living in Arizona. On any given day you can see numerous rattletraps with Sonora or Chihuahua Mexico license plates belching smoke, yet, I live here and I go through grief trying to get my car to pass emissions. C'est la vie... Markus plays by the rules, so be it.
It failed the first time, took it to the mechanic and he said the cat was bad; no problem, new cat, and back we go. This time it passed everything but failed the NOX by .07. A couple of things on the retest: their equipment needed 'recalibrating' so the car had to sit there, shut off, for about 15 minutes. I believe that having a car fully warmed up will test better, I wonder if that did it or, I noticed my air filter cone (K&N) had (again) fallen off.
Any advice or helpful suggestions is appreciated.
Additional cliff's notes: car is a 94 Z28 M6, no SES, the only mods are a CAI, TB bypass and an aftermarket exhaust, 128K; I was running mid-grade fuel, not premium, right before the test I took a 20-mile jaunt on the freeway to get the car good and warmed up.
It failed the first time, took it to the mechanic and he said the cat was bad; no problem, new cat, and back we go. This time it passed everything but failed the NOX by .07. A couple of things on the retest: their equipment needed 'recalibrating' so the car had to sit there, shut off, for about 15 minutes. I believe that having a car fully warmed up will test better, I wonder if that did it or, I noticed my air filter cone (K&N) had (again) fallen off.
Any advice or helpful suggestions is appreciated.
Additional cliff's notes: car is a 94 Z28 M6, no SES, the only mods are a CAI, TB bypass and an aftermarket exhaust, 128K; I was running mid-grade fuel, not premium, right before the test I took a 20-mile jaunt on the freeway to get the car good and warmed up.
Last edited by azmarkus; 03-27-2009 at 05:12 PM. Reason: Grammar
03-27-2009, 08:09 PM
#26
High combustion chamber temps, lean fuel mixture, too high of ignition timing are causes of high Nox
