Replacing fuel injector filters, to restore flow

[Spike00513]

..

[MikTip]

Generally the injector is "cleaned" vise removing its filter....or simply replaced.
That is if it is "confirmed" the filter is clogged in the first place.
Which often means the fuel filter, up stream is in bad shape and should be changed.

[MikTip]

So after replacing your injector filters....you noticed increase flow and performance?

[junxing]

where did you get your filters and what size screw did you used?

[MikTip]

+30HP starting @ 1200RPM through redline. [;)]
The car is still under the knife, we'll see.

[drive]ko

[Lornnn]

So after you clean them out with this method you just re-install and run as normal?

[Lornnn]

Simply put, yes.

I kept them inside of plastic bags whenever I wasn't handling them, and did my best to keep them clean. I installed new O-rings (can be had for cheap as well, you don't have to use OEM). I believe it states in the manual that they have to be replaced each time you remove an injector, but I don't believe this. I think it's fine to re-use them as long as they aren't too old, and as long as you don't mangle them when removing them from the injector.

I gave them a day to dry, just because I was busy doing other things with the car. Maybe you could let the solvent dry over night?

I lubed the O-rings with fresh oil (as per the manual), re-installed, and all was well. I had to press the gas a little bit while starting the car, to get the engine running. I believe this is to get fuel into the fuel rail (it pours out when you remove injectors). Maybe there's a specific procedure for this, such as "press the gas pedal X times, then start the car" to fill up/pressurize the fuel rail.

Appreciate it!

Will be doing this next month for my 3.0 BGN.

[BARRY]

carb and choke cleaner has a bit of lubricant in it. good choice.

[MikTip]

Costs less than $1?

How much were the replacement filters?

Can of carb cleaner?

9 volt battery?

[SlickFix]

I used Bosch/Siemens universal injector filters, which I bought from a local shop at a rip-off price. It'll cost much less online.



10-30 cents per filter is a ripoff price? You said above you can do this for ~$1. Which is it, a bargain or a ripoff? [:p]

[MikTip]

So, what was this rip-off price you paid for said filters?[o_o]

[MikTip]

No comment.

You must work for the government....

[SlickFix]

Spike, did you source the filters by size or by the part number of the injector?

[junxing]

I found this on ebay but it seems overpriced:
http://www.ebay.com/itm/FS-606C-3-0L-V6-Fuel-Injector-Service-Repair-Kit-Filters-O-rings-Seals-AVK-/281157514148?pt=Motors_Car_Truck_Parts_Accessories&hash=item41764b33a4&vxp=mtr#ht_725wt_1124

[MikTip]

I run premium gasoline which has additives like Techron, that help clean the fuel system....
To date, I have never had an Audi fuel injector issue...let alone one caused by bad injector filters....

[MikTip]

My question is what does a B5 S4 engine have in common with the B6 1.8t or 3.0? Same injectors?

I fully understand the benefits of cleaning injectors. However is it really "needed" every 30, 000 miles and on every
Vehicle? For as many years as I have been on this and various other Audi forums I have never seen or heard of such a requirement for the B6 A4. My 1.8t TT 225 OE injectors have performed fine for over 140,000 miles....zero signs or symptoms they need cleaning or replacement.

Much depends on the grade of gasoline that is run in the car....changing the fuel filter...etc...etc...

[n7plus1]

i didnt even know injectors had buit in filters?

how are you pressing the new filters in? Id need replacements for the tt225/bosch 386cc injectors. source?

[audinaut]

I run premium gasoline which has additives like Techron, that help clean the fuel system....
To date, I have never had an Audi fuel injector issue...let alone one caused by bad injector filters....

Top-tier gas solves a lot of issues. Top-tier gas is all I run in my vehicles. I only run Chevron and Costco premium octanes in my cars. Only after my local indy shop guy told me that Costco gas was good did I start using it. I left cheaper Arco, 7-11 and Circle-K gas back in my high school days [:)]

[MikTip]

One would think with the prices they charge these days for gasoline it would all be magic! [o_o]

[MikTip]

Dont get butt hurt! [=(]

[diagnosticator]

A small bench top ultrasonic cleaner would be useful for cleaning the injectors during the filter replacement.

[n7plus1]

I don't know a source. I just read on an injector service website (I forget which), that they not only come in different shapes and sizes, but different filter media micron grades as well. And that, using a finer filter media will require you to change the filters more often, because they will clog faster. Again, it's just what I read. Idk when they would need to be changed.

I tapped them in with a small hammer.

Id like to bump this as this wasnt the answer i was looking for from the OP. by source i mean, where did you buy them?


A small bench top ultrasonic cleaner would be useful for cleaning the injectors during the filter replacement.

is there a specific cleaner that would need to be used in it?

[diagnosticator]

Id like to bump this as this wasnt the answer i was looking for from the OP. by source i mean, where did you buy them?



is there a specific cleaner that would need to be used in it?

Fuel injector cleaner concentrate for adding to the fuel tank for use in the ultrasonic cleaner tank, a couple of bottles of Chevron Techron is my suggestion.

[Charles.waite]

Id like to bump this as this wasnt the answer i was looking for from the OP. by source i mean, where did you buy them?

CLICKY CLICK (http://www.ebay.com/itm/V8-5-0L-4-3L-CL500-CLK430-E430-ML430-SL500-Fuel-Injector-Service-Kit-O-Rings-/271191084408?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f243f8d78&vxp=mtr)*

I just ordered this today. Going to split the kit with Evo-Ski. Just search for "bosch injector service" in ebay. You want a kit that fits Bosch Type 3 injectors (if there is a picture be sure the injector looks like our injectors, plastic skinny injectors). There are a ton of kits, I'm guessing they're all pretty much the same. I bought an 8cylinder kit as its not much more than a 4 cylinder kit and I figured I would just split it with someone else. Makes the total cost for each person $14 instead of $25.

*™ OldGuy Enterprises

[diagnosticator]

Top-tier gas solves a lot of issues. Top-tier gas is all I run in my vehicles. I only run Chevron and Costco premium octanes in my cars. Only after my local indy shop guy told me that Costco gas was good did I start using it. I left cheaper Arco, 7-11 and Circle-K gas back in my high school days [:)]


ARCO is now a Top Tier gas brand too.

[n7plus1]

do you know which kit id need for the TT225 bosch 386cc injectors?

EDIT: according to this ebay page, the TT225 Bosch 386cc injectors need the Bosch Type 3 kit.

The OEM Bosch Part # for those injectors are: 0280155892

this kit states it "Fits Bosch Part Numbers 0 280 155 xxx"

http://www.ebay.com/itm/Bosch-Type-3-Fuel-Injector-Service-Kit-w-Pintle-Caps-/230221462446?pt=Motors_Car_Truck_Parts_Accessories&hash=item359a44bbae&vxp=mtr

someone want to go halvesies with me on this?

[Charles.waite]

do you know which kit id need for the TT225 bosch 386cc injectors?

Same as what I linked. They're the same type 3 injectors as the standard ones. I might have my kit by the end of the week so I can confirm by the weekend that it's the right one. I'm 99% certain it is given all the research I've done.

[n7plus1]

Same as what I linked. They're the same type 3 injectors as the standard ones. I might have my kit by the end of the week so I can confirm by the weekend that it's the right one. I'm 99% certain it is given all the research I've done.

cool, let me know. says it includes a tool for removal as well, lmk how that works out.

[Charles.waite]

cool, let me know. says it includes a tool for removal as well, lmk how that works out.

I'll definitely give an update to this thread when I get them in and have a chance to mess around with them some.

[n7plus1]

thanks dude

[n7plus1]

update yet on this, sir?

[Charles.waite]

Haha. I got the kit in and it looks legit. I didn't get a chance to mess around with it this weekend unfortunately.

[n7plus1]

damn man, i aint got time. lol j/k

[n7plus1]

sup bro? bump

[Charles.waite]

Ah yes. The filters in the kit definitely work. I tested the fitment out on one of my old OEM injectors and while it was tricky to get the old filter out the new one for perfectly. Since the TT injectors have the same design it should fit them 100%.

I would have updated sooner but I'm focusing on selling b7 so I just haven't had much time to deal with my b6.

[n7plus1]

thanks for the update

[n7plus1]

Id like to bump this to see if anyone wants to go in on a bulk order with me?

[B6A4Dave]

im curious as to why you would even put the filters back in?...

Your fuel filter should catch this shit... anyone found pieces of stuff the filter didnt catch or just pieces of the little filter itself?...

[n7plus1]

Pennies? Cheapest I found was ~ $0.36/ea in a bulk pack of 50.

[Charles.waite]

Pennies? Cheapest I found was ~ $0.36/ea in a bulk pack of 50.

Damn, really? I paid $16 for 9...

That included orings and pimple caps, not that I needed those but still...

[n7plus1]

Yeah, that's just filter baskets.

[CoreyRS]

So does this make any noticeable difference for you guys too?

[n7plus1]

I would imagine. I just ordered a bunch of these.will be selling them in the classifieds in sets of 5 (1 extra in case). If anyone is interested before they get thrown up on the classifieds, shoot me a PM.

[CoreyRS]

I'm interested...i mean I'm sure it can't hurt to replace them.

[n7plus1]

Yeah, for a small price. My TT injectors are pretty old and I'm getting fuel cuts under boost so this is next along with a new fuel filter.

[caldy315]

Yeah, for a small price. My TT injectors are pretty old and I'm getting fuel cuts under boost so this is next along with a new fuel filter.

Bump, wondering if the kits were pretty easy to install? I have some TT225 OEM injectors on the way and want them to be as good as new when I install with a Stg 1+ tune. By replacing the filters and pulsing with a voltage source, does this then basically equal an injector cleaning service?

N7plus1, did you get the kits and do you have any left?

[caldy315]

I've heard it's better to ultrasonically clean them.
Audi DIY: Clicky (http://www.audi-sport.net/xf/threads/diy-injector-cleaning-how-to-pic-heavy.119767/)

Even then, there's this comment on BITOG:


Cleaning report on used injectors that had new filters before being sent in:


Makes sense. They must just be pressurizing the line and pulsing the injector open and closed. I would think that would clean out any of the little holes that would affect spray pattern

[19jdog]

I changed my filters today, they were really bad!!

http://i47.photobucket.com/albums/f166/Jdog19/20160104_1412231.jpg (http://s47.photobucket.com/user/Jdog19/media/20160104_1412231.jpg.html)
http://i47.photobucket.com/albums/f166/Jdog19/20160104_1356511.jpg (http://s47.photobucket.com/user/Jdog19/media/20160104_1356511.jpg.html)

After installing throttle response was MUCH better.

I also installed the JHM 5mm intake spacer and cut off the coolant lines going to the throttle body. The spacers are suppose to give a little low end torque
http://i47.photobucket.com/albums/f166/Jdog19/20160104_1303471.jpg (http://s47.photobucket.com/user/Jdog19/media/20160104_1303471.jpg.html)

Found little pieces of plastic in the intake from my old and crumbling Vacuum Actuator Valve Yikes!!!![:(]
http://i47.photobucket.com/albums/f166/Jdog19/20160104_1242371.jpg (http://s47.photobucket.com/user/Jdog19/media/20160104_1242371.jpg.html)

if you haven't changed your filters I recommend doing this!!

Thanks Spike00513 for showing me how[wrench]

[Spike00513]

bump. Looking for stock 1.8T filters.

these claim to fit. Not sure if the original plastic injector cups will break when pulling the injectors out.

http://www.ebay.com/itm/FUEL-INJECTOR-REPAIR-KIT-O-RINGS-FILTERS-2000-2001-AUDI-VW-1-8L-L4-0280155825-/401114913663?fits=Make%3AAudi&hash=item5d644fdb7f:g:fT4AAOSwn9lXJ5zO&vxp=mtr

http://www.ebay.com/itm/00-06-AUDI-VOLKSWAGEN-1-8-FUEL-INJECTORS-Repair-Rebuild-Kit-ORings-Filters-Caps-/152545461127?fits=Make%3AAudi&epid=1038715216&hash=item23846b0387:g:sR8AAOSwaeRZFNAS&vxp=mtr

http://www.ebay.com/itm/2000-2006-AUDI-Service-Repair-Rebuild-Kit-Orings-Filters-1-8-FUEL-INJECTORS-/152497701353?fits=Make%3AAudi&hash=item23819241e9:g:SmYAAOSwU8hY48tn&vxp=mtr

^Option 1 has brown Viton O-rings. Not sure why the black ones are smaller.
Option 2 & 3, not sure what those clear things are at the bottom. edit: "Pintle cap retainer", not sure if applicable to these specific injectors though.

[5ktq]

Clear thing holds the O-ring on TT style (long metal bit) injectors, afaik

short ones have the pintle cap instead, which does the same task

[caldy315]

Never got around to doing this but bookmarked it for when it was time. I assume those two later links would work for TT225 injectors then correct, based on 5ktq's comment? Spike deleted out a lot of his posts it looks like so it's a little harder to follow.

[GTA]

Huh. I just swapped out the O-rings on my injectors but didn't notice any filters. In fact, I had no idea that there were filters in the injectors.

[Spike00513]

Never got around to doing this but bookmarked it for when it was time. I assume those two later links would work for TT225 injectors then correct, based on 5ktq's comment? Spike deleted out a lot of his posts it looks like so it's a little harder to follow.

So basically I think there are two different filter types, at least.
3L may not be the same as 1.8T.
And I've had both engines.

I performed this on my 3L, but have not done it on the 1.8T yet.

Just checked my Bookmarks to see if I have any eBay sellers saved, to use as a filter source.

Also, if it wasn't mentioned already, I heard before that brown Viton O-rings are better than black ones, but IDK how true that is, as the OEM ones are black.
I'm also not sure what people prefer to use to install the O-rings, such as giving them a light coat of grease or fuel.
I hear the grease has to be non-silicon or something, to avoid damaging the O2 sensors.

And I'm just speaking of stock 1.8T injectors. Not sure about TT225 386cc either.

I don't know any of these sellers but here's a rough idea:
Clicky (https://www.ebay.com/sch/i.html?_odkw=audi+1.8t+fuel+injector+filters&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xaudi+inje ctor+service.TRS0&_nkw=audi+injector+service&_sacat=0)


Huh. I just swapped out the O-rings on my injectors but didn't notice any filters. In fact, I had no idea that there were filters in the injectors.

I'm not sure if they're visible if you look inside the injector with a flashlight or something.
I didn't know there were filters either, until hearing about it somewhere.

I didn't even believe it, until I ended up trying to remove the with a drywall screw, and out they came, looking tired, old, and tattered.

How much of a difference does it make? I don't know. I'm just pointing out that they exist.
And I've been told by injector service shops that included in their service, aside from flow-testing, cleaning, etc. - they also install new filters.

As for online, maybe it costs less that way,
because in a rush, I found a local fueling shop (works on carburetors, etc.) who sold me some filters that fit, but at a higher price due to the nature of their business (vs. eBay)