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98 V70XC MAP/Baro sensor issue. Topic is solved

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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DeadEric
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98 V70XC MAP/Baro sensor issue.  Topic is solved

Post by DeadEric » Sun May 03, 2020 3:26 pm

I'm getting P0108 codes. I checked the sensor and its poo.

In my research I have found the it sits by the hood latch next to the washer fluid jug. It doesn't measure manifold pressure, just altitude. The sensor is $180 from worldpac, $60 from ipd and I can get a resistor for 5 cents.

My thought was, if someone could ohm check theirs I could bypass it with a resistor and rule it out for my rich AF mix.

Thanks in advance

1998v70xcbill
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Re: 98 V70XC MAP/Baro sensor issue.

Post by 1998v70xcbill » Mon May 04, 2020 8:22 am

I measured my 1998 v70xc. pin 1 front of car
pin 1 to 2 5.5k
pin 2 to 3 6.6k
pin 1 to pin 3 11.5k ohms
I'm at about 350 ft above sea level

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erikv11
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Re: 98 V70XC MAP/Baro sensor issue.

Post by erikv11 » Mon May 04, 2020 10:29 am

Get on from a junkyard, will run you about $6, and you have a lot of junkyards around you in Minneapolis. The baro sensor basically never fails but get two if you want to be sure to not have to deal with it again.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

scot850
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Re: 98 V70XC MAP/Baro sensor issue.

Post by scot850 » Mon May 04, 2020 11:54 am

Long time since I looked at this, but if I recall there were several things on the same circuit. I can't recall but I think there were 3 things. The barometric sensor, the (can't recall the name) sensor on the front cross member and I thin the 3rd was some sensor on the A/C system near the bulkhead.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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RickHaleParker
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Re: 98 V70XC MAP/Baro sensor issue.

Post by RickHaleParker » Mon May 04, 2020 12:48 pm

scot850 wrote:
Mon May 04, 2020 11:54 am
Long time since I looked at this, but if I recall there were several things on the same circuit. I can't recall but I think there were 3 things. The barometric sensor, the (can't recall the name) sensor on the front cross member and I thin the 3rd was some sensor on the A/C system near the bulkhead.
Altitude sensor, A/C pressure sensor and Accelerometer share a common ground through the ECM. If something pulls the ground high or the ground opens all three will shut down.
These users thanked the author RickHaleParker for the post (total 2):
scot850abscate
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

scot850
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Re: 98 V70XC MAP/Baro sensor issue.

Post by scot850 » Mon May 04, 2020 4:00 pm

Thanks Rick! I know we can rely on you to sort my feeble memory!

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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DeadEric
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Re: 98 V70XC MAP/Baro sensor issue.

Post by DeadEric » Mon May 04, 2020 5:08 pm

Thanks for the help, this info is perfect.

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RickHaleParker
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Re: 98 V70XC MAP/Baro sensor issue.

Post by RickHaleParker » Mon May 04, 2020 7:35 pm

scot850 wrote:
Mon May 04, 2020 4:00 pm
Thanks Rick! I know we can rely on you to sort my feeble memory!
If your relying on me, your in bad shape. :wink: :lol:
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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