2004 Ford Focus 2004 1.8 16v zetec Fault code P1131

Ford Focus Problem
The Problem
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markandvivienne36@gmail.com

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Fault code P1131
Jul 3, 2018 (1 year ago)
Have changed oxygen sensor up stream of cat replaced inlet manifold due to having a crack in it clear fault from ecu car runs fine for about 20 miles then the same fault returns any suggestions would be most welcome

Car details
Car: Ford Focus
Variant: 2004 1.8 16v zetec
Model Year: 2004
Category: Running Rough, Starting & Power Loss

Recalls: Ford Focus Recalls
More: Ford Focus Problems
Replies and solutions
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whittingehame
Fixes: 12,347
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Jul 3, 2018 (1 year ago)
Check the PCV valve and hose .
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