I've been reading the ECU modification over on Volvospeed fix the CEL issues with the air pump. Just noticed that they introduce the topic mentioning the 1997 850. I have '96 850. Before I start messing with the ECU, just wanted to be sure this modification would also apply to the 1996 850 SAS system.
Thanks
850 SAS (Air Pump) Delete Modification
- erikv11
- Posts: 11800
- Joined: 25 July 2009
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
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Yes.
On any 96 850 with an air pump, the "SAS delete" standard procedure will work. I used the Volvospeed writeup to do it on mine.
On any 96 850 with an air pump, the "SAS delete" standard procedure will work. I used the Volvospeed writeup to do it on mine.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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KlubMarcus
- Posts: 129
- Joined: 3 July 2007
- Year and Model: V70 XC, 1998
- Location: Hampton Roads, VA
- Been thanked: 1 time
I've done it on mine, over a week with with no CEL. Nothing removed, just disconnected the air pump wiring harness in front of the radiator. If someone sold me the car right now, I wouldn't even know the mod was done.
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gmtgmt
- Posts: 84
- Joined: 18 September 2011
- Year and Model: Volvo 850 T5R
- Location: Denmark
- Has thanked: 1 time
I did this to a 95 960 2.5 that i converted to an early 3.0 from a 1991
removed the air pump and pluged the Valve and removed the relay in the fuse box for the airpump been driving for last mounth no problem. passed MOT with flying colors
removed the air pump and pluged the Valve and removed the relay in the fuse box for the airpump been driving for last mounth no problem. passed MOT with flying colors
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KlubMarcus
- Posts: 129
- Joined: 3 July 2007
- Year and Model: V70 XC, 1998
- Location: Hampton Roads, VA
- Been thanked: 1 time
Follow-up post. No more SAS check engine lights. No engine problems whatsoever. Best mod I have ever done to any car I have owned 
Both my wife's 96 850 and my 98 V70 T5 have had this modification. No CEL, although the readiness cycles have yet to complete. But, took the 96 thru DEQ today, and asked if he could do an exhaust test instead of the usual OBDII and he agreed and it passed. I think for many cars if the drive cycles aren't complete, they won't pass a 96 or newer car with OBDII, but a Volvo they will. I am removing the SAS pumps from both my Volvos, never to worry about them again!
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