Volvo AWD 850 Forum

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Check engine light 850

posted by  someone claiming to be stevek on  Sat Aug 31 10:22 CST 2002 [RELATED]

I just got the check engine light the other day. The car still runs just fine. I pulled the codes, and here is what I got:

A1 - 313

A2 - 121

I know the 313 is the PNP switch code. This past winter I got the flashing arrow and got it to go away by turning the car off and back on again, and doing the rachet method through the gears as has been suggested on the board before. Since then the transmission has been fine and no flashing arrow. I know it's just a matter of time for the PNP - probably will do before this winter hits.

On the 1-2-1, can anyone tell me what this means? I believe the typical code for an oxygen sensor is 2-3-2.

Thanks alot, all, and have a happy Labor Day!!

Steve (1994 850 NA, 108K)








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follow-up - code A1 1-2-1 850

posted by  someone claiming to be stevek on  Tue Sep 3 03:10 CST 2002 [RELATED]

After clearing the codes, I drove around the rest of the weekend and the check engine light has not come back on. I guess I'll just see what happens from here and see if the 1-2-1 code reappears.

Steve








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Check engine light 850

posted by  someone claiming to be Don on  Sun Sep 1 10:02 CST 2002 [RELATED]

According to the haynes manual, the code 121 means either the MAF or MAP sensor signal is absent or faulty, depending upon whether you have a Fenix 5.2 or a Motronic 4.3 fuel injection system.

Happy hunting.

93 & 95 854 GLT, 95 855 T, and 93 Camry (sorry about that)
85 & 86 245 (RIP)







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