{"id":15,"date":"2017-08-28T02:06:16","date_gmt":"2017-08-28T02:06:16","guid":{"rendered":"http:\/\/blsandbox5.wpengine.com\/?p=15"},"modified":"2021-07-23T16:33:35","modified_gmt":"2021-07-23T16:33:35","slug":"how-to-test-your-fuel-injectors-in-just-30-minutes","status":"publish","type":"post","link":"https:\/\/www.dieselogic.com\/blog\/how-to-test-your-fuel-injectors-in-just-30-minutes\/","title":{"rendered":"How to Test Fuel Injectors in Only 30 Minutes"},"content":{"rendered":"

The\u00a0fuel injectors<\/a>\u00a0in your diesel engine are vital to the operation of your vehicle. When they function properly, you enjoy a smooth-running vehicle that gives you all the power you need for getting around and getting things done. When operating at peak performance, your fuel injectors get you the fuel efficiency you expect from your vehicle and help keep your engine\u2019s emissions safe. In this article, we will teach you how to test your fuel injectors.<\/p>\n

FIRST, TAKE A LOOK<\/strong><\/h3>\n

Your approach will depend on the type of fuel injection in your vehicle. If you have a throttle body injection (TBI) system, begin with these steps:<\/p>\n

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  1. Remove the air filter housing.<\/li>\n
  2. Have someone else start the engine while you take a look.<\/li>\n
  3. Look at the fuel spraying from each injector.<\/li>\n
  4. If the fuel is partially atomized and spraying in a v-shaped pattern, that injector is fine.<\/li>\n
  5. If the fuel spray is broken or solid, the injector is clogged. You can try to unclog it with a fuel cleaner additive or take it to your mechanic.<\/li>\n
  6. If there is no fuel spraying from the injector, it could be completely clogged<\/a>, a bad injector or something is wrong elsewhere like the fuel pump or fuel filter. If that\u2019s the case, move to the next steps.<\/li>\n<\/ol>\n

    LISTEN CLOSELY\u2014BUT CAREFULLY!<\/strong><\/h3>\n

    The next steps apply to a TBI system injector that is completely clogged or not functioning, as well as vehicles that utilize electronic fuel injection (EFI) systems. This is where that long screwdriver or metal rod comes in.<\/p>\n

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    1. Start the engine and place the end of the screwdriver on a fuel injector.<\/li>\n
    2. Carefully lean your head toward the far end of the screwdriver or rod. Make sure you have your safety gear on. If the injector is activating properly, you should be able to hear a clicking sound.<\/li>\n
    3. Repeat the screwdriver test on each injector and take note of each one that you can\u2019t hear clicking.<\/li>\n
    4. Turn off the engine and turn on the battery so the lights, radio, and other electronics are on but not the engine.<\/li>\n
    5. Connect the clip of the automotive test light to the negative terminal of your vehicle\u2019s battery. Then take the pointed tip of the test light and touch it to the small bit of exposed wire on the fuel injector connector. The test light should light up if the injector is functioning properly.<\/li>\n
    6. Repeat the test light procedure for each injector, taking note of each one that does not light up.<\/li>\n<\/ol>\n

      What You\u2019ll Need to Test Your Fuel Injectors<\/strong><\/h2>\n

      The tools you\u2019ll need to\u00a0test your fuel injectors\u00a0are relatively simple, and you probably have most of them lying around in your house or garage. The list of items you\u2019ll need\u00a0to test fuel injectors\u00a0includes:<\/p>\n