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-   -   83SC CO Value w/o O2 Sensor (http://forums.pelicanparts.com/porsche-911-technical-forum/459957-83sc-co-value-w-o-o2-sensor.html)

arbita1 02-28-2009 09:40 AM
83SC CO Value w/o O2 Sensor
 
I'm getting ready to adjust the CO setting. The Bentley manual says to use .6-.8%. However, I'm not using the O2 sensor. Should it be more like 2.5-3.0%?

Scott R 02-28-2009 10:07 AM
Is this a US or ROW SC? I ask because if you have the sensor unplugged, and you still have a frequency valve this is going to be an issue.

arbita1 02-28-2009 10:09 AM
Quote:
Originally Posted by Scott R (Post 4513680)
Is this a US or ROW SC? I ask because if you have the sensor unplugged, and you still have a frequency valve this is going to be an issue.
US. It has frequency valve.

Scott R 02-28-2009 10:21 AM
Just a suggestion, of course you can go 3% route and be just fine, however I have a nice dyno sheet showing better AFR's with the sensor hooked up and the CO around .8%. Just something to consider, other wise go with the 3% and leave it disconnected.

mca 02-28-2009 10:28 AM
Mine likes 3.0 - 3.5%

arbita1 02-28-2009 11:43 AM
Ok. I set it at .8% and hooked the O2 sensor back up. Let's see how it does.


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