 Emission Issues, and a wierd check engine light |
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 Oct 25, 2007 - 12:27 PM
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 Enthusiast  Joined Oct 31, '03 From Phoenix, Az Currently Offline Reputation: 0 (0%)  |
Hey Guys I've been trying to get my car through emissions but have had issues. Initially I failed all 3 pollutants tests. I had a check engine light 27 so I had the 2nd O2 sensor replaced. I also replaced a few other minor things (pcv valve, air filter, oil, ect). After this my check engine light still wouldn't go away but now when I test its just a constant blink. I took it to emissions anyways and passed HC and CO easily but I failed NOX by way more than the first testing.
First testing - 2.76 (passing is 2.0) 2nd testing - 4.91 Any Idea why it would be HIGHER now? and what the issue could be, wouldnt the EGR valve show up on the check engine testing if thats what it is. Also any suggestions on the check engine light? I reset it by pulling the 15 amp efi fuse, then tried disconnecting the batery for a good 15 min. Is there anything else i could do? |
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Oct 25, 2007 - 2:28 PM
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Enthusiast Joined Nov 4, '03 From Vancouver, Canada! Currently Offline Reputation: 0 (0%) |
QUOTE(jussten @ Oct 25, 2007 - 5:27 PM) [snapback]608314[/snapback] Hey Guys I've been trying to get my car through emissions but have had issues. Initially I failed all 3 pollutants tests. I had a check engine light 27 so I had the 2nd O2 sensor replaced. I also replaced a few other minor things (pcv valve, air filter, oil, ect). After this my check engine light still wouldn't go away but now when I test its just a constant blink. I took it to emissions anyways and passed HC and CO easily but I failed NOX by way more than the first testing. First testing - 2.76 (passing is 2.0) 2nd testing - 4.91 Any Idea why it would be HIGHER now? and what the issue could be, wouldnt the EGR valve show up on the check engine testing if thats what it is. Also any suggestions on the check engine light? I reset it by pulling the 15 amp efi fuse, then tried disconnecting the batery for a good 15 min. Is there anything else i could do? NOx is usually higher due to engine timing, EGR valve or bad cataytic converter |
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Oct 25, 2007 - 3:45 PM
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Enthusiast Joined Oct 31, '03 From Phoenix, Az Currently Offline Reputation: 0 (0%) |
I got the check engine light to go away after I drove it around a bit after reseting it. I'm guessing that it was never reset at the shop.
as for the egr valve/cat converter..... would that not prompt the check engine light to display? |
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