04-24-2015, 12:09 PM
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#1
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Registered User
Join Date: Apr 2012
Location: Mid-Michigan
Posts: 89
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Secondary Cats
Quote:
Originally Posted by Dlirium
Got a CA smog check. I was worried as I wasn't sure If my 2000 S fell into the "no more sniffer test" category or not. I have 2nd Cat Delete pipes, but throw no code.
Good news! no sniff! just checked OBDII port and passed! I love the way CA is doing this now...no way any smog check guy is going to pop the hood or look under our cars for visual stuff like that...
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There are no 02 sensors in or after the secondary cats so you should not get a CEL or a code in your OBD II reader by eliminating them. I have read elsewhere here that the car will pass the sniff test without them as well but I live in MI, not CA, so I can't confirm that.
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2000 base tip, desnorkeled, secondary cat delete, underdrive pulley.
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04-24-2015, 01:15 PM
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#2
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Registered User
Join Date: Oct 2014
Location: Oshawa
Posts: 96
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I changed tiptronic fluid!
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1997 Boxster! (Tiptronic)
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04-24-2015, 01:47 PM
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#3
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,114
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Quote:
Originally Posted by jrblackman
There are no 02 sensors in or after the secondary cats so you should not get a CEL or a code in your OBD II reader by eliminating them. I have read elsewhere here that the car will pass the sniff test without them as well but I live in MI, not CA, so I can't confirm that.
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That depends on the model year of your car. My 2003 S has O2 sensors before and after the secondary cats.
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
Last edited by KRAM36; 04-24-2015 at 04:13 PM.
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04-25-2015, 06:45 PM
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#4
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Registered User
Join Date: Oct 2014
Location: Santa Rosa, CA
Posts: 520
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Quote:
Originally Posted by KRAM36
That depends on the model year of your car. My 2003 S has O2 sensors before and after the secondary cats.
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2003 Base do not have the secondary O2 sensors, so I assume it's a S spec.
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2003 2.7 Boxster - Tiptronic - Carrera wheels - OBC - Red calipers - Cat pipes - Modified muffler - Rear speakers - K&N - Litronics
2006 V6 Mustang
2008 ML 350
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04-25-2015, 07:16 PM
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#5
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,114
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Quote:
Originally Posted by EJ-Fresno
2003 Base do not have the secondary O2 sensors, so I assume it's a S spec.
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Interesting, wonder why they are only on the S model?
Anyone have some insight on why the S model has them and the Base doesn't?
__________________
2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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04-25-2015, 07:46 PM
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#6
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Registered User
Join Date: Jul 2014
Location: Listowel, Ontario, Canada
Posts: 1,120
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Quote:
Originally Posted by KRAM36
Interesting, wonder why they are only on the S model?
Anyone have some insight on why the S model has them and the Base doesn't?
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Are you sure about that? I'm sitting here pretty confident my 02 base has the secondary 02....maybe I'm remembering wrong....
Edit - sorry, quoting the wrong response....
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2011 Boxster 987.2 Arctic silver / Black leather, PDK with Sports Chrono Package Plus
Last edited by Giller; 04-25-2015 at 07:47 PM.
Reason: wrong quote bubble.
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04-25-2015, 07:52 PM
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#7
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,114
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Quote:
Originally Posted by EJ-Fresno
2003 Base do not have the secondary O2 sensors, so I assume it's a S spec.
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Quote:
Originally Posted by Giller
Are you sure about that? I'm sitting here pretty confident my 02 base has the secondary 02....maybe I'm remembering wrong....
Edit - sorry, quoting the wrong response....
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I am intrigued about this.
__________________
2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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04-25-2015, 07:58 PM
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#8
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Registered User
Join Date: Apr 2014
Location: New Jersey
Posts: 47
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Was actually last Sunday
But I changed spark plugs, spark plug tubes and oil. Will flush coolant and replace thermostat with the low temp one in the next 2 weeks.
__________________
2000 Boxster S (986)
De-snorkeled withK&N Cold Air intake
Short Shifter 14mm spacers F&B
Secondary Cat delete
Top Speed Test pipes and Exhaust
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04-25-2015, 08:02 PM
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#9
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Registered User
Join Date: May 2013
Location: North Alabama
Posts: 2,079
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I have an 01S
And I can tell you that there are no Oxygen sensors on the secondary cats...in fact the secondary cats are sitting in my basement.....TG we have no emissions here in AL
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