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Old 02-15-2021, 06:02 PM
Michelle's Avatar
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Originally Posted by StephenVA View Post
Moderators, please delete the posting above

Originally Posted by plasstik View Post
Mods, delete this guy

Joins random group, just to post about unrelated stuff!

Please use the Report Post button in the future. The admin/mod team isn't active on the board, but we get emails when a post is reported.
/ / / Michelle
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2018 F15 X5 35i M Sport
(Sept 2020 to present)
2012 E70 X5 35d (Aug 2015 to Sept 2020)
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Old 02-15-2021, 07:13 PM
Join Date: Jan 2020
Location: PNW
Posts: 221
RocketyMan is on a distinguished road
The method I proposed is a really good "cheap" way to just clean the injectors. The pro to taking them out of the engine/fuelrail is that you can reverse flow them. Hooking up something inline without the fuel pump running with the engine running, only "sorta" cleans them in my opinion. That method you are banking that all the debris and blockages are soluble in a solvent solution. This might be true for most debris, but I don't think for all.

Ever take a fuel filter out of a 100k+ mile car and strike it hard with gas coming out? You'll see it is very dark/brown sludge that comes out. It's basically dirt! Things of this nature cannot simply be dissolved running one way through the injector. Same type of filter element that is in the fuel injector screen.

Flow matching is very important because the DME has to guess which injector isn't flowing correctly by O2 sensor readings and timing. Then it makes adjustments to try and match everything.
2003 BMW X5 3.0 -- manual, 3.64s final gears, H&R lowering springs, K-Mac bushing kit
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Old 02-16-2021, 10:03 AM
Join Date: Oct 2009
Location: Northern Virginia
Posts: 67
jbfrancis3 is on a distinguished road
I find it most satisfying to use a service because they give before and after measurements. WitchHunter Performance is my choice.

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Old 02-16-2021, 11:11 AM
Join Date: Apr 2009
Location: Nutley
Posts: 57
gregy is on a distinguished road
That place is pretty impressive, considering what they do spending $200 to clean up the injectors is not too bad.
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fuel injector

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