Have Ford Questions? Ask a Mechanic for Answers ASAP
Hello my name is***** am an ASE Master Technician and I am glad to help you with your question.
I can send you the repair steps from the factory service manual to diagnose these codes and what they mean if you would like.
You need to replace your fuel filter, and exhaust back pressure sensor. The p1280 is an injector pressure sensor code that could be caused by a clogged fuel filter, or you could also need to replace the injector control pressure sensor.
Verify DTC P1316 &/Or DTC P1670Clear DTCs. Turn ignition key off and on, then start engine. Road test vehicle. Perform KOEO ON-DEMAND SELF-TEST . Retrieve DTCs. If DTC P1316 and/or DTC P1670 is present in continuous memory with any KOEO DTCs, perform appropriate system test and repair as necessary
Hello again Dan here,
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This question is coming up on 7 days which means it will time out and close.
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Let me help some more. Is there anything else I can help you with?
If I did not give you 5 star service, please let me know what I missed.