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.

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Disclaimer:
Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.

[fabianvalencia]

Dang 10 years later and this video just saved me $300 from a tow and diagnosis. Chrisfix will always be a legend!!

[chrisfix]

+Hector Garcia-Martinez For some reason I cannot reply to your comment so I hope you see this. You need to test your fuel pressure and let me know what happens when the car is warm. Do these tests: Fuel Pressure Test

[blueadept]

You are truly a master Chrisfix, you've made me quite proficient in automechanics over the past 5 years.. truly thankful for your tutoring, you are the best.

[morecowbell]

Thanks! I was getting read to remove my injector rails and swap injectors to troubleshoot if injector 4 is bad due to misfiring.
This will save me that time and I can quickly check resistance.

[perceive]

You forgot to mention that injectors are either high impedance or low impedance. A low impedance injector will have a resistance of around 2.5 to 3 ohms, while a high impedance injector will fall somewhere around 12-18 ohms. Good simple video on how to check 😎

[nathanshaffer]

You are a great teacher - it's so fast like being taught in the matrix with a software install

[allanlawson]

I love the simple straight to the point short answer for what i was looking for!!! Thank you Chris.

[okayomar]

Now i have found my favourite youtube diy channel. Keep it up chris!

[torchmmaempire]

Like the way this guy explains things so simple. Cool tutorial bro.

[paweltulik]

Amazingly simple stuff and brilliant guide. Thank you!

[adielabader]

You are a legend with your well rehearsed "How To"s. thanks man !

[jasontanner]

Just want to say thanks for the video. Showed me what I needed to no to test my injectors on my Jeep

[waen]

You do this so well Chris, simple and to the point, cuts through much of the mystery of all these feed back systems cars now have?

[ericdandridge]

You are a big help to me Chris. You add alot to my automotive aptitude.

[macbaldwin]

Chris you saved me a bunch of money! I used my multimeter to test the injectors on my Chrysler 200C 3.6L. Each tested at 15.0 ohms, except my one trouble cylinder. That one tested at 33.0. Replaced that injector, all my engine warning lights turned off and it's running smooth. Your video very straight forward and the graphics made it easy to understand the discussion. Thanks!!!

[ThisuraYapa]

This is a really helpful video of yours which serves it's purpose even now.
Thanx Chrisfix.

[DtKnize]

Thanks man, good job! Fast and quick to the point.

[paullunin]

Thank you for explaining everything in simple terms

[jemtec]

One other important point.
You ALWAYS want to subtract the meter lead resistance from your reading.. So, touch the test leads together (in this case, at 200 ohms) you will probably get something around 0.3. If you have 14.8 Ohms for example after stabilizing, subtract the 0.3, giving you an actual reading of 14.5 Ohms. :) This is especially important with more sensitive devices, and can mean the difference between actual replacement, and not replacing when its actually bad. Good video!

[DoubleD]

This helped me out today. Never did fuel injectors thank you