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SAS Wiring Question Secondary Air System 850 1996

posted by  hawkeye on  Sun Jul 20 08:03 CST 2014
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last visit: Wed Oct 22 16:44 CST 2014
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I have a question, the SAS (Supplemental Secondary Air System)fan appears to be energized by 12 neg. being supplied to the relay, mounted to the fan. The fan is new and the relay has been tested and functions correctly (as does the fan). The wire that appears to energize the relay is a blue wire with a red stripe.

The car was cold this morning. We started it and after about 10 seconds the SAS valve opened. It appears to be controlled by a vacuum switch mounted to the radiator shroud. That switch also has a blue wire with a red stripe.

The fan never came on because it never received neg 12 volts to the blue/red wire. I am pretty sure you would never want the SAS valve open and pump not running.

It did not throw the P410 code either.

I am thinking of tapping into the blue red wire on the vacuum switch an sending that to the fan.

Any thoughts or ideas on this would surely be appreciated.

Hawk






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New SAS Wiring Question Secondary Air System [850][1996]
posted by  hawkeye  on Sun Jul 20 08:03 CST 2014 >


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