P0113 Ford -

Question

Found 3codes P0113, AIT, P171, oxy sensor bank1 and P174 oxy sensor bank2. Replaced all three parts plus fuel filter and I am still getting oxygen sensor codes. Can anyone give me more info if this has happened to them

Answer 1

HI there,

The lean codes, P0171 and 174 are usually a result of either low fuel pressure or the mass air flow sensor. Also, look for any intake manifold leaks as well. Since you have the intake air temp sensor code as well, then this would also point to a possible maf sensor issue since on most vehicles the IAT is part of the maf sensor.