![]() ![]() Place the meter leads on the prongs inside the connector, making sure that they are not touching each other. Set it to the lowest range if the meter doesn’t autorange. There may be a slide lock that you need to move before you can press down on the tabs to remove the wiring harness. They are typically secured by bolts and can be removed with a basic socket set including an extension. Note: Some engines have plastic panels that need to be removed before you can access the injectors. Part 1 of 2: Testing injector resistanceĭigital Volt-Ohmmeter (DVOM) or multimeter with ohms setting ![]() This, in turn, causes the fuel to not burn completely and will create a misfire. They can clog up, which will decrease the spray inside the cylinder. It is possible for the injector to cause issues even if it is receiving the correct voltage. This guide will focus on making sure the injectors are receiving the correct amount of power and that the injector itself doesn’t have too much resistance. Over the life of the car, the injectors fire millions of times and eventually can wear out or clog up, preventing the engine from operating correctly. ![]() This allows the injector to deliver precise amounts of fuel into the cylinder, even while the engine is spinning at higher RPMs. This ruins fuel economy since all of the fuel may not be combusting, and you have to press harder on the gas pedal to get the car to move.įuel injectors are a particular type of solenoid that are made to actuate their pistons very quickly. Having a faulty injector can cause one of your cylinders to not ignite fully, which will throw the balance of the engine off at all speeds. If your engine is running rough, there may be an issue with the vehicle’s fuel delivery system. ![]()
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