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1995 850 TURBO O2 SENSOR LOCATION 850 1995

posted by  arble on  Tue May 20 07:29 CST 2008
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last visit: Tue Aug 28 09:53 CST 2012
[RELATED]

Is it possible for someone to share with me a diagram or a picture helping me to locate both o2 sensors on my 850 wagon. car is running but dying at every stop sign, it idled roughly before, but this morning whatever problem i had became stronger as the car will not idle at a stop without dying and is running very rough , i ran codes and it originally said 543 the misfire but after i reset the codes when i got home they appeared in this sequence:
1st 435 front o2 sensor slow response,
2cd 121 maf sensor signal
3rd 414 boost prssure regulator,
4th 543 misfire on at least 1 cylinder
5th 542 misfire on more than one
6th 212 front o2 sensor
so i have reset the codes again, and will remedy whatever the problem is, but am pretty confident i need to change at least the front o2 sensor cannot find a picture or diagram telling me where to locate it, again any help greatly appreciated








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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    It sounds like you have a problem with the vacuum lines and need a general tune up. When were the plugs and wires last changed? Check fuel pressure too.
    The O2 sensors won't cause the problems you are describing. They are located on either side of the catalytic converter. Locating them is the easy part, getting to the connectors and unplugging them is another story.
    Good luck,
    --
    Tom 69-1800S, 72-1800ES, 96-850T,2000-S70 GLT-SE



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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    The O2 sensor will make your car run a little rich, but it should not stall. That is the MAF. Unplug the wires from the MAF, clean the connectors, inspect the wires directly behind the plug to make sure they are not broken or cracked and plug it back securely.
    The boost pressure regulator is run by vaccuum, make sure the vacuum lines are not leaking. Especially the elbows connecting to the intake manifold. A bad vacuum leak will also give false readings to the ECU and set the O2 sensor code.

    Klaus
    --
    The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)



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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    sent you an email, i hope :-)
    picture from vadis on the location of the o2 sensors.

    Claes
    --
    V70 2,5T -98



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      posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

      that was very helpful, i guess i should start from that point although i was also hoping to see where the other end is attached as well, thanks a bunch



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