Fuel Injector Operation

Details the operation of the automotive fuel injector. Goes into how to test the fuel injector, theory of operation and other aspects of reading the injector waveform on the automotive scope. Finally, coverage is also given as to the specific current flow characteristics for automotive fuel injectors. Schools may use this automotive technology video as an in-class companion.

Category:

Autos & Vehicles

Tags:

• injector
• auto
• automotive
• automotive fuel injector
• auto injection system
• auto fuel injector
• fuel injector
• auto diagnostics
• auto technology
• auto repair
• auto electronics
• auto electrical instructions
• automotive technology
• automotive repair
• howto test fuel injectors
• P0200
• P0201
• P0202
• P0203
• P0204
• P0205
• P0206
• P0207
• P0208
• P0209
• P0210
• P0211
• P0212
• P0213
• car
• cars
• engine
• nissan

[fiverrgigler]

Hello, first of thank you for putting this video as I was looking of how fuel injectors works. I'm researching how to fix my car, the 4th injector does not fire fuel, already swapped with a good injector but still it won't fire. I hope you could show how to troubleshoot fail injector. More power and subscribing to your channel. Love it. Take care.

[ADPTraining]

@fiverrgigler On the inoperative injector, with Key On Engine Off disconnect and check for power at one side of the injector (any side). One side has to have steady power. If it's a Dodge that it's different then post back. The other side has to pulse a ground when engine cranked. You may use a NOID light to check for pulsation. Post back after you check these points. Good luck...

[fiverrgigler]

@ADPTraining Thank you for your reply. I've checked the injector using Noid Light, unfortunately there's no sign of pulsation. Do you think there might be something wrong with the wire or electronic parts that goes to the injector? I've been reading about Relay and Transistor but I don't know where to locate them in my car. By the way, I have Hyundai Coupe 1993. Thank you so much for helping. Take care.

[ADPTraining]

@fiverrgigler Ok, the ECM triggers the injector by providing a ground. Your next step is to check the injector wire (pulsed) for continuity to the ECM connector. Search the web for a wiring diagram. Remember, check the wire opposite to the 12 volt steady power. ID the wire and go for the check. Post back afterwards...

[fiverrgigler]

@ADPTraining Hi, thank u for ur patience. It seems the injector works again. It maybe intermittent. I also noticed that when I stop the engine after faltering (choking sound), and I tried to cool it down a bit like 2 mins, then it will work fine again. Sometimes, even in the first run it hardly accelerate. Do you think it's still related to the injector? Thank you. Take care.

[ADPTraining]

@fiverrgigler OK, this is what you can do: Just swap the injector connector of the faulty one with the one next to it. It's fine the injectors will pulse out of synch, but the fuel stays in the manifold runner. If its the injector then the same inj. will continue to fail. If it's wiring or the ECM then the new injector (swaped one) will also start to fail. Post back with more.

[TheOrlandoKia]

Thanks for all of the great information!

[ADPTraining]

It's in this same channels... Thanks for the post.

[sangolt88]

Thank you Microsoft Sam

[yapanuwan]

Thank you Stephen Hawking !!!

[gavisful]

i dont understand because this in english

[gavisful]

I DONT understand jjejejej