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P0201 indicates an issue with fuel injector 1. Here is a list of possible causes.
P0201 FORD - Injector Circuit Malfunction Cylinder 1 Read more: https://www.autocodes.com/p0201_ford.html
P0171 indicates the fuel mix is too lean. Here is a list of possible causes.
P0171 LINCOLN - Fuel Injection System Too Lean Bank 1 Read more: https://www.autocodes.com/p0171_lincoln.html
P0301 indicates a misfire on cylinder 1. Here is a list of possible causes.
P0301 FORD - Cylinder 1 Misfire Detected Read more: https://www.autocodes.com/p0301_ford.html
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