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Failed smog
After years of great smog tests my 85 3.2 it finally failed smog. What failed was the HC at 117, max allowed 97. My experienced tech said a new oxygen sensor could be my problem. I went online to look at them and some of them require cutting/ splicing wires. Are there any sensors out there that just plug in on reinstall? Thanks, Nick
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02-02-2018, 07:17 PM
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Never mind, I just realized that there are two types, OEM and universal. Anyway, I hope the new one works. HC is the only thing that failed.
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02-02-2018, 08:44 PM
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hi Nick..what was the co measurements?
ivan
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1985 911 with original 502 191 miles...808 198 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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02-02-2018, 10:44 PM
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HC is unburnt fuel right? Luckily we don't have experience of this - but what if you leaned the idle mix out? too simple?
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
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02-02-2018, 11:14 PM
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CO was 0.29 at 15 mph and 0.31 at 25 mph.
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02-03-2018, 11:50 AM
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nick it is too lean....
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1985 911 with original 502 191 miles...808 198 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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02-03-2018, 12:25 PM
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OK, I understand. But what would change a system that was fine to be too lean? It has only been about 6000 miles since my last test?
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02-03-2018, 12:57 PM
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that is a lot
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1985 911 with original 502 191 miles...808 198 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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02-03-2018, 01:02 PM
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Join Date: Jul 2007
Location: Halifax, Canada
Posts: 1,216
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What's the time period for that 6k miles. 2 years?
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02-03-2018, 01:03 PM
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Yup, about two years. Ill check after I fix my 02 sensor engine plug connector that broke while removing the rubber sleeve.
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02-03-2018, 01:26 PM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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Vacuum leak?
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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02-03-2018, 05:08 PM
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Join Date: Jan 2008
Location: seattle, WA
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Isnt your car exempted yet? 25 yrs and older, no? mine is an 87 and i put in a cat bypass
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ken 87 targa |
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02-03-2018, 05:51 PM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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Quote:
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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02-03-2018, 06:04 PM
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Join Date: Jan 2017
Posts: 94
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As long as you all can keep a secret.
When my dad passed away a few years back, I inherited his 1977 911 S. I’m in Kalifornia as you referred, and was facing a real conundrum. When I went to transfer the car into my name, the nice lady behind the counter said the car is a bi-annual smog car. My dad lived in a county that did not have to smog vehicles so I assumed I was screwed. Well the lady told me t list his street address first, then mine underneath on the title. Well needless to say, I get the registration every year, but never have to smog the Porsche. The DMV thinks the car still lives in a non-smog county. I don’t take what the angel at the DMV did for me for granted! Loopholes! Sent from my iPhone using Tapatalk |
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02-03-2018, 07:40 PM
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Porsche 911 Carrera
My Garage
1971 Porsche 911
Baja Bug
