Having problems with your 2005 Ford Focus ?

Check engine light

\015 My 2005 Ford Focus Wagon check engine light came on & it started running bad. Auto Zone hooked their computer up to it. It came back saying that it recognized a rich or lean condition on one engine bank only. If bank one and two codes set together suspect fuel pressure or mass air flow,Oxgen sensor defective,Igniition mis fire or fuel injector problem I am going to replace the mass air flow should this take care of problem?\015 Posted / edited by AnonymousUser on : 20-11-2017

Answers :

It might but what exactly are the codes. Before you change the Mass air flow sensor, try cleaning it first with a can of mass flow cleaner.\015\012
\015\012If your running a oil K&N filter, there could be some oil residue on the sensor. Start with that and change the filter or clean it if it's a K&N.\015\012
\015\012The O2 sensor's could be bad also, you really need the code's to be sure what sensor is giving you the faulty signal.\015\012
\015\012Good luck and hope this helps.
Repair Help & Product Troubleshooting for 2005 Ford Focus

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