P0443 2002 Ford F150 -

Question

hello i have loss power in my truck they give me all the code i give it to you please help me on that tank

Answer 1

p0171 - Fuel Injection System Too Lean Bank 1

is the cause for the problem, most likely and intake leak, the gasket under the intake manifold. Spray brake cleaner near the intake manifold while the car is running and see if the rpm changing if so you have an intake leak

Possible causes

- Intake air leaks

- Faulty front heated oxygen sensor

- Ignition misfiring

- Faulty fuel injectors

- Exhaust gas leaks

- Incorrect fuel pressure

- Lack of fuel

- Faulty Mass Air Flow (MAF) sensor

- Incorrect Positive Crankcase Ventilation (PCV) hose connection