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Discussion Starter · #1 ·
My '95 850T's check engine light came on yesterday. I checked the codes with the under-hood diagnostic unit and found 2-3-2 (Long Term Fuel Trim Idling) and no other codes. I'm presently vacationing about 300 miles from home. Is this something that likely requires immediate attention, or can I drive it back to my trusted shop at home? The car does not seem to drive any differently since the fault showed up.

Thanks,

Eric
 

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Most likely caused by bad or very worn Oxygen Sensors. I assume they have not been replaced as they are $$$$$ BUT, you can purchase Generic Bosch 4 Wire Sensors and wire them in yourself. But there have been reports of inconsistent reliability with generic ones. You should always replace the sensors as a set. The ECU adjusts for the age of the sensors and replacing one will sometimes cause codes to be thrown for the older one.

BTW check for Vacuum Leaks FIRST! I would say that 50% of all CEL lights are related to vacuum leaks. The 850 Turbos have more plumbing than NYC and it is just as bad!
 

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Discussion Starter · #3 ·
Thanks for the tip on the vacuum leaks; I'll definitely check that out before shelling out for a new O2 sensor.

Eric
 

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where would I begin to check for vacum leaks and where are the O2 sensors located ( I know there are two of them but don't know where they are. ( gee can you tell I am brand new to this repair of a 850 turbo game?) :0
 
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