Code help

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Sep 21, 2006 | 01:22 PM

vuk75

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Senior Member

Joined: Mar 2004

Posts: 123

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From: ohio

Code help

Computer is throwing 1131 code on 99 5.4 any info would be great

Sep 21, 2006 | 02:23 PM

projectSHO89

Senior Member

Joined: Oct 2002

Posts: 7,295

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From: St. Louis (Out in the woods)

That one is almost always the upstream O2 sensor on the passenger side.

Steve

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