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getting codes 122 & 225 I need advice 850

posted by  ozzieboy on  Wed Apr 23 18:29 CST 2003
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I have posted a few posts in regard to my 850 SE 1994 180K. She seems to drive perfectly for about 15 minutes then the idle and accerleration get really rough and she start to misfire then recovers and misfire on and off. I have the Hayes manual which indicate that 122 is a faulty intake air temp sensor signal and 225 is a faulty air con pressure sensor??? I don't understand how these codes relate to problems in my car. I was fully expecting a faulty misfire on the cylinder or a fuel pump problem.
So far I have change oil and filter, fuel filter, new spark plugs, cleaned rotor arm and distributor which still seem to have life in it. I dont really want to take her in I live in Brisbane Australia and I do not know of any repubtable volvo mechanics, I don't want to get ripped off it is is something as simple as replacing the sensor. I had a bad experience with my old 760 where I was charge $450.00 for the replacing of an $90.00 alternator. Can I get advice from you guys on what I should do next? Or if anyone on this board is from Brissie can you advise me on a reputable volvo repiar shop.








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    getting codes 122 & 225 I need advice 850

    posted by  markas on  Thu Apr 24 07:27 CST 2003
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    last visit: Sat Jan 2 04:39 CST 2010
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    Hi ya,

    It will be worth cleaning out the throttle body, and the flame trap. If you still have one installed remove it permanently and clean it up. Both of these can be done at the same time. Also with the throttle cover off clean around the small adjustable bolt at the bottom as this can effect the tick over. Also make sure all those white vacuum lines a secure.

    http://www.volvospeed.com/Repair/ftrap.htm
    http://www.volvospeed.com/Repair/vacuum_lines.htm

    What is the state of your air filter you didn't mention that in your post ?

    Next do you know how to clear the codes , if not follow this link and then see which codes are fired up when you have done the above.

    Mark in the UK
    UK VOC 94 850glt 2l 20v 193k miles t5r bumper,slots,Volvo brace,k+n,Mobil 1
    --
    Mark in the UK.







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