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How to make the SAS emissions test run?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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wrybread
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Re: How to make the SAS emissions test run?

Post by wrybread »

Aha, disregard, the SAS test just passed! It is showing a pending fault though, I wonder when that will go through? I hope it holds off until I can get to the smog place tomorrow.

And should it be showing a pending fault if I did the SAS diode mod? Makes me wonder if I did it correctly.
Carlo the Nautic Blue 1998 S70 GLT
Previously Diego the 2000 S70, now has a blown head gasket and is awaiting the coroner

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abscate
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Post by abscate »

No it should not. The solenoid and relay have to remain in place for the SAS though, even with the diode installed.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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wrybread
Posts: 241
Joined: 20 April 2019
Year and Model: 1998 S70 GLT
Location: California
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Post by wrybread »

Ok this is weird. I figured out how to get the SAS test to run, just start the car cold and let it idle for like 10 minutes. But even though I'm never letting the tank get below full (never more than 1.5 gallons from full), the evap test keeps running and throwing the CEL. It shows up as a pending fault right away, within like 10 or 20 miles of me resetting the CEL.

I don't imagine anyone has any ideas about why it's running even with a full tank?
Carlo the Nautic Blue 1998 S70 GLT
Previously Diego the 2000 S70, now has a blown head gasket and is awaiting the coroner

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abscate
MVS Moderator
Posts: 35267
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
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Post by abscate »

It might run the first series of tests and faulting on that right away.

User lexia posted a great tome in the exact EVAP sequence
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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