But, having one makes the whole process easier since you're able to retrieve any diagnostic trouble codes (DTCs) stored in the PCM memory. To actually test the fuel injectors, you don't need a scan tool (since a scan tool can't dynamically test the fuel injectors).
85 ford bronco 302 vacuum diagram fuel injection upgrade#
If you need to upgrade or buy a multimeter, check out my recommendation: Buying A Digital Multimeter For Automotive Diagnostic Testing (found at: ).You'll only be using the multimeter to check resistance (Ohms).Here's a basic list of tools you'll need: To do a fuel injector resistance test, you don't need a whole lot of stuff, since the most important tool you'll need is a multimeter (which can either be an analog multimeter or a digital multimeter). What Tools Do I Need To Test The Fuel Injectors? No matter what the root cause, a bad fuel injector will cause the engine to idle rough and miss when you accelerate it down the road. PCM goes bad and activates the fuel injector as soon as the key is turned to the Run position.The fuel injector doesn't activate because it does have power but the fuel injection computer doesn't activate it.The fuel injector doesn't activate (spray) because it's missing power.The fuel injector gets clogged with deposits and won't spray enough fuel or in the proper spray pattern.The fuel injector fries internally and won't spray any fuel.Now, to go into more specifics of how a fuel injector can fail on your 5.0L engine or 5.8L engine: Other symptoms include but not limited to: The most common symptom of a bad fuel injector is an engine miss at idle or when you accelerate the vehicle. You can find this tutorial in Spanish here: Cómo Probar Los Inyectores De Combustible (Ford 5.0L, 5.8L) (at: ). Interpreting The Results Of The Fuel Injector Test.What Tools Do I Need To Test The Fuel Injectors.
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