finding out which fuel injector is dead?

[nisssan-drive]

I no one of my injectors is out but I am just not sure which one. Does any one no how i can find my bad injector?

[youngun21a]

I think the easy is to remove the fuel rail and have someone crank the engine,and see witch one is not fireing.

[r3v_v3ng3]

other way to is to check the resistance on your injectors. use a multimeter and set it in ohms. make sure the injector(s) are disconnected when doing this.

[slo_coupe]

or you could use a long screwdriver and listen for ticking in each injector. thats what i did any ways and it work just fine

[00selimited]

I think the easy is to remove the fuel rail and have someone crank the engine,and see witch one is not fireing.

I dont see how that is easy.

Easy is to start the car, and unplug the plug wire one by one until you find one that doesnt make a difference in idle when unplugged.

[vancouverbc]

I dont see how that is easy.

Easy is to start the car, and unplug the plug wire one by one until you find one that doesnt make a difference in idle when unplugged.

agreed

[TheBestEspresso]

I no one of my injectors is out but I am just not sure which one. Does any one no how i can find my bad injector?

Not to be a smartass, but if you know one is "out" then you should obviously know how to find a bad one..afterall you already figured one is bad so you already know how to find a bad injector. Yes? Or am I missing something?

[nisssan-drive]

Yeah i definitely don't want to take my fuel rail off Im already tired of shoving my head into the manifold from replacing the knock sensor. I thought of turning my car on and just unplugging the injectors like selimited said ,but I was scared that could maybe mess something up. Guess it works pretty good thanks for the help looks like thats what ill be doing to find my pos injector.

Oh espresso I can't see to find the point of your post. It seems you have figured every thing out, and that your definitely missing something so?????

[00selimited]

Yeah i definitely don't want to take my fuel rail off Im already tired of shoving my head into the manifold from replacing the knock sensor. I thought of turning my car on and just unplugging the injectors like selimited said ,but I was scared that could maybe mess something up. Guess it works pretty good thanks for the help looks like thats what ill be doing to find my pos injector.

Oh espresso I can't see to find the point of your post. It seems you have figured every thing out, and that your definitely missing something so?????

Well, i said spark plug cable, but i guess you could unplug the injector but it takes more work because of the annoying clip.

[youngun21a]

my bad, I did it so many times it's like changing the oil to me. but yeah your right others sound better.you should try that first.

[nisssan-drive]

Yeah I guess I just have the word injector stuck in my mind from dealing with them all day. Yeah any ways I did it that way and found it was cylinder #4. Ha do to frustration and a very bad ****ing headache I did not get to replace my injector.One of the damn screws melted like butter in a instant when trying to to unscrew it .

[00selimited]

Th

Yeah I guess I just have the word injector stuck in my mind from dealing with them all day. Yeah any ways I did it that way and found it was cylinder #4. Ha do to frustration and a very bad ****ing headache I did not get to replace my injector.One of the damn screws melted like butter in a instant when trying to to unscrew it .

Try using PB Blaster and this:

[ELdrifto]

Do it like they used to in the old days, even jets were tested the same. If you don't have a full preasure station, then whip out a piece of cardboard(maybe a 2 by 3 sheet). Take one injector out, point it 6 to 8 inches away, and have your buddy crank that motor. Don't let it fire up. Now repeat to the rest of them and then you'll see wich pattern is off thus telling you which is faulty. Whether starting or running at idle, they'll spray the same. Its when you start moving or revving that motor that'll make a differerence in the pattern. Now if there is no problem then you need to look deeper the find one.

[srpowered240sx]

the unplug idea is the way to do it. then when you narrow it down. swap it with another injector and see if the problem follows the injector or stays with the cylinder.

[nisssan-drive]

Yeah thanks guys I have already found it with the unplug method. Take a look at my anger and frustration thread to see if you can help me there. Car wont start after bogging and rpm drop.?.?.?