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Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Sat, 18 Dec 2010 15:19:54 Share Post by Email
In Reply to: Re: Angled O2 Sensor Adapter, sab, Sat, 18 Dec 2010 14:57:19
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I have the GS 3-inch downpipe feeding into a Saab/Remus exhaust system. Both times I got the code the car was driven mildly like your experience, sort of a necessity in Mighigan winters.

It seems that catalytic converters need surface area and high internal temperature in order to do their job. A race cat has limited area due to its size, so any reduction in temperature renders it inefficient. Driving mildly drops the exhaust and Cat temperature which is what has happened to both of us. Driving hard keeps the race Cat temperature high enough to do its job.

Like your experience I had no dirveability issues whatsoever.

The anti-fouler I purchased didn't work because it was too small in diameter to be re-drilled to accept the nose of the O2 sensor. The cut aways of the adapters from Big Daddies show them as having the 18mm female thread for the full length of their body. With CELs happening on two-week intervals I should know within a month of installing the device if it has solved my problem.

posted by 98.250.156... 
_______________________________________
Saabs owned:
2008 9-5 Aero Sedan, sold at 227K miles
2006 9-3SC 2.0T - Wife's daily driver
2000 Viggen Convertible - Sold May, 2022
1964 Quantum IV Formula Car - Retirement project
2000 9-5lpt Sedan, sold at 318K miles
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