Has anyone here tried to ultrasonic clean their injectors themselves and had any luck? My Genesis Coupe has 193,xxx miles on it, and it isn't running rough, but I am sure by now the injectors probably aren't at 100%. It is my only vehicle so I can't really send them off and be down several days, I would like to try ultrasonic cleaning them myself. Has anyone tried this or had any luck doing so? I know to get the full effect you have to hook them up to a battery or something to actuate it on the inside and clean in there as well. Any insight would be appreciated.
DIY Ultrasonic Fuel Injector Cleaning - Anyone?
- Thread starter Lethal1ty17
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Haven't tried ultrasonic but there is a DIY way to use a 9V battery to actuate the injector and then to spray carb cleaner through it.
I've also seen eBay sellers who recondition injectors and sell them in sets ready to go. You send in your old ones as a core and the overall cost is less as a result.
I've also seen eBay sellers who recondition injectors and sell them in sets ready to go. You send in your old ones as a core and the overall cost is less as a result.
I do and it works really well. I use the HF ultrasonic cleaner and an injector tester off on Amazon. With some graduated cylinders I've been successfully cleaning and flow testing injectors at home. Had an issue not too long ago with lean fuel trim. It was only 10% so it was within limits but it was bugging me. After diagnosis and testing pointed to the injectors, I took them out and ran them through a couple cycles. After that, fuel trims are now much better at 2%.
Kestas
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I've done it myself as well. I hooked up the injectors to variable voltage and turned up the voltage until they just open. The nozzle end is connected to clear tube filled with alcohol, which is forced through the injector by blowing to give it a reverse flush. All this is done in an ultrasonic bath filled with alcohol. It's satisfying seeing the cloud of crud coming from the injector.
What capacity unit / what ultrasonic frequency and if you use heating, what temperature?
Originally Posted By: Lasthope05
I do and it works really well. I use the HF ultrasonic cleaner and an injector tester off on Amazon. With some graduated cylinders I've been successfully cleaning and flow testing injectors at home. Had an issue not too long ago with lean fuel trim. It was only 10% so it was within limits but it was bugging me. After diagnosis and testing pointed to the injectors, I took them out and ran them through a couple cycles. After that, fuel trims are now much better at 2%.
How are you feeding Heptane under pressure into the injectors for the graduated cylinders and triggering them in a simulated drive cycle and static flow?
Other than Ohms how are you testing the electrics and leak testing under maintained pressure?
The HF ultrasonic unit is nowhere near powerful enough and alcohol is a very poor cleaner. Depending on the type of deposits an ammonia based or acidic based cleaning solution may be needed. Just sayin.
I do and it works really well. I use the HF ultrasonic cleaner and an injector tester off on Amazon. With some graduated cylinders I've been successfully cleaning and flow testing injectors at home. Had an issue not too long ago with lean fuel trim. It was only 10% so it was within limits but it was bugging me. After diagnosis and testing pointed to the injectors, I took them out and ran them through a couple cycles. After that, fuel trims are now much better at 2%.
How are you feeding Heptane under pressure into the injectors for the graduated cylinders and triggering them in a simulated drive cycle and static flow?
Other than Ohms how are you testing the electrics and leak testing under maintained pressure?
The HF ultrasonic unit is nowhere near powerful enough and alcohol is a very poor cleaner. Depending on the type of deposits an ammonia based or acidic based cleaning solution may be needed. Just sayin.
Originally Posted By: Trav
Originally Posted By: Lasthope05
I do and it works really well. I use the HF ultrasonic cleaner and an injector tester off on Amazon. With some graduated cylinders I've been successfully cleaning and flow testing injectors at home. Had an issue not too long ago with lean fuel trim. It was only 10% so it was within limits but it was bugging me. After diagnosis and testing pointed to the injectors, I took them out and ran them through a couple cycles. After that, fuel trims are now much better at 2%.
How are you feeding Heptane under pressure into the injectors for the graduated cylinders and triggering them in a simulated drive cycle and static flow?
Other than Ohms how are you testing the electrics and leak testing under maintained pressure?
The HF ultrasonic unit is nowhere near powerful enough and alcohol is a very poor cleaner. Depending on the type of deposits an ammonia based or acidic based cleaning solution may be needed. Just sayin.
I have a complete standalone fuel system I setup on a bench. It consists of a fuel tank w/ pump, fuel filter, fuel rail w/ pressure regulator (43 psi). Fluid I am running is gasoline. With this I can pressurize the system for leak tests. Of course ohms are checked depending upon hi or low impedance.
The injectors are pulsed with a PWM controller on an arduino. Setup to cycle at different duty cycles and Hz(rpm). They are tested at both static and dynamic flow rates.
Ive cleaned quite a few injectors with the HF ultrasonic cleaner. While it does take a quite a few passes if particularly bad in the end it still works. The transducer is just bit weak so it takes longer. Also I never said anything about using alcohol.
Originally Posted By: Lasthope05
I do and it works really well. I use the HF ultrasonic cleaner and an injector tester off on Amazon. With some graduated cylinders I've been successfully cleaning and flow testing injectors at home. Had an issue not too long ago with lean fuel trim. It was only 10% so it was within limits but it was bugging me. After diagnosis and testing pointed to the injectors, I took them out and ran them through a couple cycles. After that, fuel trims are now much better at 2%.
How are you feeding Heptane under pressure into the injectors for the graduated cylinders and triggering them in a simulated drive cycle and static flow?
Other than Ohms how are you testing the electrics and leak testing under maintained pressure?
The HF ultrasonic unit is nowhere near powerful enough and alcohol is a very poor cleaner. Depending on the type of deposits an ammonia based or acidic based cleaning solution may be needed. Just sayin.
I have a complete standalone fuel system I setup on a bench. It consists of a fuel tank w/ pump, fuel filter, fuel rail w/ pressure regulator (43 psi). Fluid I am running is gasoline. With this I can pressurize the system for leak tests. Of course ohms are checked depending upon hi or low impedance.
The injectors are pulsed with a PWM controller on an arduino. Setup to cycle at different duty cycles and Hz(rpm). They are tested at both static and dynamic flow rates.
Ive cleaned quite a few injectors with the HF ultrasonic cleaner. While it does take a quite a few passes if particularly bad in the end it still works. The transducer is just bit weak so it takes longer. Also I never said anything about using alcohol.
That works. No it wasn't you that said alcohol it was another poster, sorry if there was a misunderstanding. The tanks I use are sweepers and so powerful if you throw a piece of aluminum foil there it instantly disintegrates.
When they are triggered in the tank the power of the thing pushes fluid and all the crud right out the top with just the business end submerged.
When they are triggered in the tank the power of the thing pushes fluid and all the crud right out the top with just the business end submerged.
So would a basic ultrasonic cleaner from amazon and a 9V battery work to hold it open? Also what kind of cleaning solution would be needed? Seafoam? B12 Chemtool? It sounds like you all have done some way more complicated stuff - I just want to clean mine for cheaper than it would cost to send them off ($20 each + shipping)
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