What was suggested for testing the MAF is to unplug the wiring connector to the MAF and then see if the engine runs better after with it disconnected. It is only a test, not recommended for running the car on the road. The ECU reads the information from the MAF to make adjustments to the engine. When you disconnect it it goes to data programmed into the ECU. If the car runs the same with the MAF connected or disconnected it is not the MAF. It is worth cleaning the MAF with specific MAF cleaner and see if that helps before buying a new or used replacement. Bosch used to be the go to for this but I believe they are no longer made. Volvo still had a stock but at a stupid price.
Neil.
Urgent Help Finding Oil Leak Topic is solved
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scot850
- Posts: 14875
- Joined: 5 April 2010
- Year and Model: 2000 V70 R
- Location: Calgary, Alberta, Canada
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Re: Urgent Help Finding Oil Leak
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold
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BeerDeer
- Posts: 94
- Joined: 6 January 2024
- Year and Model: 1996 and Volvo 850
- Location: Finland
- Has thanked: 2 times
- Been thanked: 3 times
I discovered that the hoses and parts I purchased are not compatible with my vehicle. It appears that most retailers are only selling the hidden Turbo PCV model, whereas I own a non-turbocharged and automatic Volvo 850.
Additionally, I am unsure whether my car is equipped with an EGR system, as its presence seems to be dependent on which PCV system to order. I would greatly appreciate any assistance in finding the right PCV for my Volvo 850
Additionally, I am unsure whether my car is equipped with an EGR system, as its presence seems to be dependent on which PCV system to order. I would greatly appreciate any assistance in finding the right PCV for my Volvo 850
- abscate
- MVS Moderator
- Posts: 35278
- Joined: 17 February 2013
- Year and Model: 99: V70s S70s,05 V70
- Location: Port Jefferson Long Island NY
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These cars don’t use EGR. Some models have SAS , supplementary air system
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
- Clemens
- Posts: 1932
- Joined: 3 September 2015
- Year and Model: 96 855 R + 94 855 T5
- Location: Austria
- Has thanked: 473 times
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SAS is an air pump and some hoses, mounted towards the firewall, if I remember correctly. Ask Google, there should be photos out there.
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V
Winter: 1994 855 T5M
Donor: 1995 854 10V
- Sveedy
- Posts: 2069
- Joined: 11 November 2019
- Year and Model: 96 850 Turbo
- Location: N. Arizona
- Has thanked: 417 times
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I'm pretty sure that the '94 I was pulling parts from in the junkyard had an EGR.
Try to learn life's bad lessons vicariously through others.
1996 850 Turbo GLH ( Goes Like Hell )
1999 V70 GLT
1996 850 Turbo GLH ( Goes Like Hell )
1999 V70 GLT
- misha
- Posts: 5379
- Joined: 7 December 2008
- Year and Model: '97 850 2.5 20v
- Location: Serbia
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'91-'95 yes....'96 & '97 no.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
- DennisCA
- Posts: 177
- Joined: 26 September 2024
- Year and Model: 1996 850
- Location: Finland
- Has thanked: 4 times
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You don't have EGR, but you very likely have an SAS, the air pump is somewhere below the battery. There should be a hose from the air intake that connects to the air pump.
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BeerDeer
- Posts: 94
- Joined: 6 January 2024
- Year and Model: 1996 and Volvo 850
- Location: Finland
- Has thanked: 2 times
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I encountered another issue today. When I started the car, it was difficult to start. The cause could be the PCV valve, the relay pump, or any other potential issue. I proceeded to drive the car. When I put the car in reverse, it worked fine. However, when I shifted into drive (D), the car stalled. I tried shifting back into reverse, and it worked again. When I shifted into drive (D) once more, the car stalled again. Interestingly, when I used the winter mode, the car was able to drive without any issues. I am wondering if there is a problem with the transmission. I will try flushing the transmission fluid to see if that resolves the issue.
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