the three step is a common service procedure performed at almost every shop out there, however it is not cheap. a quick call around were i live netted prices between 120-175. it isn't a hard process but it is a time consuming one. for less than $30 I performed something i believe to be almost the same thing.

this is my first instructable, please leave feedback and let me know how i could make it better!

also  the standard disclaimer applies, fuel is flammable, an irritant, and so is the cleaner you choose (or at least I hope so)
and air pressure can be dangerous if misused,

Step 1: The Goods

first gather the required parts.

1x air fitting
2x 1/4 to 3/4 bung
2x 3/4 to 1" reducer
1x 1" by 10" pipe
1x  brass barb fitting in what ever size fuel hose you decide you need
2-3 ft high pressure fuel hose rated for at least 70 psi
2x hose clamps
1x Teflon tape
I use parts from a universal fuel pressure test kit for adapting to a car. That way you can pritty much do all of them. With all the different pressures of different cars, it is a good idea to use a small adjustable pressure regulator, and guage on the air line. That way you can just use straight compressed air. If you want to get really fancy, you can just use an inline fuel pump, and no air at all.
<p>I run straight Berryman's B12 through mine. Also, when I run my canister through the injector rail, the fuel pressure regulator is regulating the pressure regardless of what I have my air compressor set at as far as PSI. I have a PSI gauge on my canister before and after. Also, I added a shut off ball valve. I would have preferred to used steel piping or copper tubing over the rubber fuel line that I currently have. I have broken 2 fuel lines. I also have run mine through a modified fuel rail with a 12v switch for high impedence injectors to get a better look at the spray patterns. I have had several clogged injectors where I managed to clean up the spray patterns with this method through an external fuel rail. It is very neat to watch and learn how injectors work with your own fuel rail. My other set up is a fuel pump out of a junked Caravan and basically the same thing with a fuel rail including a fuel filter. The fluid gets recycled and sucked back up through the fuel pump into a fuel filter and back into the injectors. I prefer the pneumatic setup over the electric fuel pump cleaning method any day. It seems to have more &quot;umphh&quot; as far as cleaning pressure.</p>
<p>Can i ask if you have plan for a cleaning diy tool for CIS injectors.</p>
&quot;make and use a homemade fuel injector cleaner for you car or truck&quot;<br><br>Nice job, but I think your title is off. I've used an injector cleaner before, but I had access to shop air and a parts box for the proper banjo fittings. <br><br>If I did it again with home-brew cleaner, though, I'd probably try to remove my catalytic converter. All that unburned fuel-smoke can't be good for it.<br><br>

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More by Hansj3:how to perform a three step fuel service + how to make a tool 
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