Ford Repair Questions? Ask a Mechanic for Answers ASAP
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It sounds like either the front catalytic converter is clogged or fuel injector is leaking. You can compare exhaust pressure on both of the oxygen sensor holes to see if pressure is the same, if front has more pressure then converter needs to be replaced. If both are the same which should be under 2-3psi then check for injectors leaking. Let me know if you have more questions or if there is anything else I can do to help. Thanks.
Sounds good, keep me updated. Thanks again and have a good night.