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Help, repeated oxy-sensor failure V70-XC70 1998

posted by  jol on  Mon Sep 6 14:12 CST 2004
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Hi,
I have a 98 AWD V70. 2 years ago I had a new front O2 sensor put in by the dealer. I just replaced a front O2sensor 2 months ago (using OEM sensor) after a P0131 code.

I am getting the check engine light on AGAIN and my OBDII is reading P0131 (low voltage O2 sensor bank 1).

What is making my front O2 sensor fail like this?? Bad ECU? What gives??

Jolly








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Help, repeated oxy-sensor failure V70-XC70 1998

posted by  someone claiming to be Jot on  Tue Sep 7 11:50 CST 2004 [RELATED]

The low voltage is caused by the engine running lean. Sounds like time to change the Mass Air Sensor







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