#FORD DIAGNOSTIC CODE HOW TO#
#FORD DIAGNOSTIC CODE CODE#
#FORD DIAGNOSTIC CODE SERIES#

Inspect all vacuum lines and hoses for leaks, and make sure they are properly connected.

If other codes are present, they must be addressed first.

#FORD DIAGNOSTIC CODE CODE#

Use FIXD to scan your Ford to verify P0171 is the only code present.Reading and analyzing fuel trims and the freeze frame data is the key to properly diagnosing P0171. Many people will replace the air fuel sensor or O2 sensor as soon as they get a bad reading, but the root cause is often a dirty or faulty mass air flow sensor or vacuum leak, thus causing the O2 or A/F sensor to read differently to compensate. It is important to complete the entire diagnostic process when diagnosing P0171. Ford Code P0171 Common Diagnosis Mistakes It is okay to drive your Ford with P0171 for a short period of time, but driving with this code for an extended period of time can overheat the engine and cause internal engine damage. Vacuum leaks вЂ“ PCV hose, vacuum hoses, intake manifold gasket.When these adjustments become too large, code P0171 is triggered. To keep your Ford engine running properly, the powertrain control module (PCM) tries to compensate for the lean condition by injecting more fuel to the mixture in an effort to maintain the proper 14.7:1 ratio. The lean condition can be caused by a vacuum leak, which introduces more air into the air-fuel mixture, or by a weak fuel system, which does not input enough fuel into the air-fuel mixture. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered. What Does P0171 Mean For Your Ford?Д¬ombustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. You can get to the bottom of your vehicleвЂ™s diagnostics by purchasing your own code reader, or you can bring your car to your local AutoZone and get it scanned as a part of our free Fix Finder service.System too lean (Bank 1). Additionally, while an OBD code is not necessarily specific to a certain make or model of vehicle, the steps required to remedy it likely depend on the type of car, truck or SUV you drive. That is, you may see a certain code on an OBD-II system for your BMW, Chevrolet, Chrysler, Dodge, Ford, GMC, Jeep, Subaru, Toyota or another type of vehicle. The error detected may be dependent on what different makes of vehicles are capable of generating. On most vehicles nowadays, there are hundreds of possible DTCs a car can generate. For example, if your vehicleвЂ™s OBD detects a leak in the evaporative emission system, you may see a P0442 code.

#FORD DIAGNOSTIC CODE SERIES#

Reading as a series of five letters and numbers, the DTC allows you to home in on the system that is not functioning properly. The diagnostic trouble code is the code your OBD generates to tell you something is wrong.If your vehicle has this system, you need an OBD-II diagnostic scanner to communicate with its OBD system. Since 1996, vehicles have an OBD-II diagnostic system. The OBD may alert you to problems with your vehicleвЂ™s engine, airbags, antilock brakes and other components. The on-board computer diagnostic system is the integrated tool that monitors many of your vehicleвЂ™s essential systems.

#FORD DIAGNOSTIC CODE HOW TO#

Of course, if your vehicleвЂ™s computer produces one, you need to know what your trouble code means.Д«efore exploring what each code means and how to fix it, you should understand two important concepts. Modern vehicles have internal computers that not only control the overall performance of your car, truck or SUV, but they also alert you to a problem by generating trouble codes.

Ford diagnostic code