Replacing fuel injector filters, to restore flow

**Spike00513** · 05-30-2014 12:10 AM

..

**MikTip** · 05-30-2014 05:34 AM

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** · 05-30-2014 07:24 PM

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

**junxing** · 05-30-2014 07:30 PM

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

**MikTip** · 05-30-2014 07:55 PM

Originally Posted by Spike00513

+30HP starting @ 1200RPM through redline.

The car is still under the knife, we'll see.

ko

**Lornnn** · 06-02-2014 01:09 AM

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

**Lornnn** · 06-02-2014 01:37 AM

Originally Posted by Spike00513

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** · 06-02-2014 01:55 AM

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

**MikTip** · 06-02-2014 03:49 AM

Costs less than $1?

How much were the replacement filters?

Can of carb cleaner?

9 volt battery?

**SlickFix** · 06-02-2014 03:05 PM

Originally Posted by Spike00513

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?

**MikTip** · 06-02-2014 04:59 PM

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

**MikTip** · 06-03-2014 04:39 AM

Originally Posted by Spike00513

No comment.

You must work for the government....

**SlickFix** · 06-03-2014 07:47 AM

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

**junxing** · 06-03-2014 07:56 AM

I found this on ebay but it seems overpriced:
http://www.ebay.com/itm/FS-606C-3-0L...#ht_725wt_1124

**MikTip** · 06-12-2014 08:56 PM

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** · 06-13-2014 06:00 AM

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** · 06-13-2014 07:50 AM

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** · 06-13-2014 04:35 PM

Originally Posted by 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....

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** · 06-13-2014 06:53 PM

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

**MikTip** · 06-13-2014 08:27 PM

Dont get butt hurt!

**diagnosticator** · 09-08-2014 12:25 PM

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

**n7plus1** · 09-08-2014 12:35 PM

Originally Posted by Spike00513

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?

Originally Posted by diagnosticator

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** · 09-08-2014 05:20 PM

Originally Posted by n7plus1

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** · 09-08-2014 05:26 PM

Originally Posted by n7plus1

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*

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** · 09-08-2014 05:30 PM

Originally Posted by audinaut

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** · 09-09-2014 08:25 AM

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...44bbae&vxp=mtr

someone want to go halvesies with me on this?

**Charles.waite** · 09-09-2014 08:32 AM

Originally Posted by n7plus1

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** · 09-09-2014 08:38 AM

Originally Posted by Charles.waite

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** · 09-09-2014 08:50 AM

Originally Posted by n7plus1

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** · 09-10-2014 06:13 PM

thanks dude

**n7plus1** · 09-17-2014 05:05 AM

update yet on this, sir?

**Charles.waite** · 09-17-2014 08:09 AM

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** · 09-18-2014 05:36 AM

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

**n7plus1** · 10-01-2014 06:26 AM

sup bro? bump

**Charles.waite** · 10-01-2014 07:34 AM

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** · 10-10-2014 06:42 AM

thanks for the update

**n7plus1** · 01-08-2015 12:12 PM

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

**B6A4Dave** · 01-08-2015 12:50 PM

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?...