Subject	First Emission Test in VA Failed
Posted by	tomsbradford on July 13, 2013 at 3:36 PM
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Message	I moved to Northern VA in March - got new license plates in June. Now I’m trying to pass emissions. The low speed failed on HC and CO%. The high speed failed on NOx. I have high-flow cats and no precats. The EGR is still installed, but not sure how well it's working. Checked for obvious vacuum leaks. Based on what I read, and before buying stock cats, I plan to do the vacuum trick, add “Guaranteed to Pass”, and retard the timing to about 10 deg BTDC. Perhaps someone has experience with a similar emission challenge and can offer advice. Is there anything else that could increase my chances of passing? The first-try emission inspection report details are: Limit/Reading/Result 15 MPH HC: 92 / 160 / FAIL CO%: 0.37 / 0.48 / FAIL NOX: 1200 / 379 / PASS RPM: / 1625 / VALID DILUTION: / 14.7 / VALID 25 MPH HC: 100 / 89 / PASS CO%: 0.53 / 0.45 / PASS NOX: 1167 / 1667 / FAIL RPM: / 2565 / VALID DILUTION: / 14.6 / VALID
Follow Ups	First Emission Test in VA Failed - tomsbradford 15:36:40 07/13/13 make sure you get your Z nice and hot and not have - 300ZMang 09:34:40 07/14/13 Re: make sure you get your Z nice and hot and not have - tomsbradford 09:58:09 07/14/13 so go to another station or go when they arent super busy - 300ZMang 10:07:37 07/14/13 When I lived in NOVA Bernie installed hi-flow cats on my Z. - TT-Z (Cape Coral, FL) 16:05:54 07/14/13 This is the only method that worked for me in Texas. I have - ZTicket(Dallas) 06:25:11 07/15/13 Where are you in NoVA? (n/m) - Nate (NoVA) 08:36:12 07/15/13 Lovettsville - almost as far north in VA as possible. (n/m) - tomsbradford 09:02:41 07/15/13 Damn, I can't help you up there. But try retarding timing - Nate (NoVA) 12:04:38 07/15/13 Otherwise, rent cats from Bernie. - Nate (NoVA) 12:05:45 07/15/13 Re: First Emission Test in VA Failed - Doug71zt(CAN) 14:52:59 07/15/13 Temporarily create a vacuum leak off the balance tube - ThisIsSparTTa 10:35:31 07/16/13
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