Ford Focus fault code p1131
Variant: 2004 1.8 16v zetec
Model Year: 2004
Categories:
Running Rough, Starting & Power Loss
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
Posted: Jul 3, 2018 (6 years ago)
Check the PCV valve and hose .
Posted Jul 3, 2018 (6 years ago)
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