Help, Service engine soon light on.

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Old Apr 30, 2005 | 12:06 AM
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leshan's Avatar
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Help, Service engine soon light on.

Hi,

98 taurus 12v 88kmiles. I got a error code: P1131: Lack of ho2s switch - sensor indicates lean. Can any one teach me what is the prolem, What should i do to fix it.

Is it possible because of oxygen sensor?
Thanks
 
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Old Apr 30, 2005 | 07:46 AM
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projectSHO89's Avatar
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From: St. Louis (Out in the woods)
Most likely the upstream O2 sensor on the firewall side.
 
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