Quote:
Originally Posted by miklos
My Smog problem:
I went to Test Only and all Visual passed but my NO at 15mph was 3652 and at 25mph it was 3045. This was tested in California. My cat is 2 years old.
The odd thing is if I join the 2 vacuum lines going to the AIV--the car idles 100rpm higher and much smoother.
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most likely ur EGR system is clogged