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maf issues again

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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erikv11
Posts: 11800
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
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Re: maf issues again

Post by erikv11 »

94 - 98 all use the same MAF. LP Turbo, HPT, non-turbo, all models, 850 or S/V/C70.
'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 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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misha
Posts: 5379
Joined: 7 December 2008
Year and Model: '97 850 2.5 20v
Location: Serbia
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Post by misha »

AVIP wrote: What I have done:
Replaced maf with reman bosch. Fixed for one day. Same issues....
You done nothing with remanufactured sensor. :!:

Buy NEW or at least used OEM Bosch Maf sensor.Aftermarket...or worse-remanufactured,will NOT work.
:!:

After installation of "working" maf sensor,you need to reset fuel trim by disconnecting negative battery cable for at least 15 min.After that you can perform re-learning procedure to allow the car to collect all needed parameters from engine sensors.
Here is the procedure:
computer relearn procedures.pdf
(33.82 KiB) Downloaded 100 times
Last edited by misha on 17 May 2014, 15:19, edited 3 times in total.
'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
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misha
Posts: 5379
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Year and Model: '97 850 2.5 20v
Location: Serbia
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Post by misha »

AVIP wrote:Will take a look salvage yard has one for 10 bucks but im not sure the sensor is the same 96 850 to my s70?
Check for Bosch numbers 0 280 217 107.It's the same for all of these 20v cars up to '99.

Like erikv11 said...Doesn't matter if it's turbo or not,they are all the same for 20v cars.
'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
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Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
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Post by Ben850 »

misha wrote:
AVIP wrote:Will take a look salvage yard has one for 10 bucks but im not sure the sensor is the same 96 850 to my s70?
Check for Bosch numbers 0 280 217 107.It's the same for all of these 20v cars up to '99.

Like erikv11 said...Doesn't matter if it's turbo or not,they are all the same for 20v cars.
I have a collection of MAFs for diagnostics, among other sensors, relays etc...

Point being, I firmly believe I brought home this for $650.
Plus $12 for the sensor.
Plus $12 for the sensor.
Of course it needed other work, but the main issue the seller was having was the fact that it would not stay running continuously.

A MAF and a few vacuum lines later, I was a happy guy.

https://www.matthewsvolvosite.com/forums ... 35&t=56550

There were O2 sensors that I believe also played a part in the reliability/drivability. (Usability)

Sensors seem to want to be Bosch OEM designation for these cars. I have found junkyard parts that fit the bill cheaply and put a huge smile on my face.

Good luck.
Last edited by Ben850 on 17 May 2014, 17:19, edited 1 time in total.
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)
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AVIP
Posts: 191
Joined: 1 December 2013
Year and Model: 98 s70
Location: Alpine

Post by AVIP »

So I believe we have momentary success (until its sold lol) I put a new raman maf from az since it was free. After installing I removed neg terminal and held the brake pedal resetting the whole computer. No cel and no hesitation and the throttle wasnt stiff at all as previously.

Drove it 20 min and went to get gas. The moment of truth was when I started her up after a small stop. Cranked right up. Did so when I got home too and it cranked. Good enough to be a dd for a while till I sell her
98 Volvo S70 NA 198K - SOLD
02 Volvo S80 T6 150k
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