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> Injector Cleaning
Olympic 914
post Nov 3 2025, 10:08 AM
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Injector cleaning

Looking for injector cleaning business suggestions.
I have 4 2.0 injectors that I would like to send out for testing.

Back story:
I was battling a surging issue and sent four of my spare injectors out for cleaning and testing. I checked each with a 9V battery before sending and they all clicked.

I first looked at Witchhunters, which I had used before, but they went out of business. On their website they recommended Advanced Injector in KS. So I packed them carefully in bubble wrap and shipped them off. When I got them back they were loose in a flat rate box with some papers towels shoved into the box. Not individually wrapped just rattling around in the box.

I installed them and the car would not run at all. Since I was having other issues I checked everything else before pulling those injectors and tested them with a can under them. 3 did not flow at all. And after removing them I found they would no longer click.

So I put my old injectors back in, and the engine ran.
I don’t know if they will work now since they don’t click. I thought about tapping them with a plastic hammer. And trying the 9V battery thing again.

But in the meantime, I would like a couple suggestions on places other than Advanced Injectors in Kansas, whom I do not recommend.
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jim_hoyland
post Nov 3 2025, 02:45 PM
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Get that VIN ?
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How frequent should injectors be serviced; before having a problem ?
And, who sells the curved hoses ?
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fiacra
post Nov 3 2025, 02:51 PM
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QUOTE(jim_hoyland @ Nov 3 2025, 12:45 PM) *

How frequent should injectors be serviced; before having a problem ?
And, who sells the curved hoses ?


I service them when they have an unknown history. Just part of my list of things to do when getting a classic car. I will honestly say I haven't noticed that it has made any difference, other than my peace of mind. At a minimum new hoses and new o-rings if you don't know when these were last replaced.

https://914rubber.com/fuel-injector-line-el...for-porsche-914
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