How to Check Fuel Injector Resistance with a Multimeter. Using a Multimeter to Test Fuel Injector Resistance Ohms. Learn how to check fuel injectors to make sure they are working. You use a multimeter on the resistance settings and measure the ohms of the injector. All injectors should be within .5 ohms of each other. If an injector is out of the resistance specification, that injector is bad.
Symptoms of bad injectors are a check engine light with codes P0300 through P0308, misfiring, hesitation, poor fuel economy, stalling, and a poor idle.
Using a Screwdriver to test fuel injectors (EASY): https://www.youtube.com/watch?v=tA_E6X4ISgQ
How to test Fuel Pressure : https://www.youtube.com/watch?v=_oXLUqE4Sf0
How to Test Spark Plug Wires: https://www.youtube.com/watch?v=4_EFGAFxi1w
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