1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Injector cleaning..

Discussion in 'A4/S4 forum(B5 Chassis)' started by JayB5UK, Feb 19, 2007.

  1. JayB5UK
    Offline

    JayB5UK Member

    Joined:
    Jan 13, 2006
    Messages:
    470
    Likes Received:
    0
    Has anyone ever bothered to have this done? Have heard good things about the results it gives, smoother running, better MPG, not to mention more power.
    Wondered if anyone had actually ever bothered having it done?
    #1
  2. Beerzo
    Offline

    Beerzo Masa'warty 3200... Talk To Me!

    Joined:
    Feb 10, 2006
    Messages:
    1,242
    Likes Received:
    0
    How do you go about this. Along the lines of a Redex treatment or something, or do you physically have them removed?
    #2
  3. Layerz
    Offline

    Layerz Member

    Joined:
    Feb 18, 2007
    Messages:
    144
    Likes Received:
    0
    They are physically removed and sonically cleaned, prices start at £20 per injector. You can also get them uprated to provide more flow so with a remap/tubro/fmic = more power.
    #3
  4. Beerzo
    Offline

    Beerzo Masa'warty 3200... Talk To Me!

    Joined:
    Feb 10, 2006
    Messages:
    1,242
    Likes Received:
    0
    I am assuming that using a £5 Redex treatment is completley useless?
    #4
  5. JayB5UK
    Offline

    JayB5UK Member

    Joined:
    Jan 13, 2006
    Messages:
    470
    Likes Received:
    0
    Beerzo, I have used this and felt a slight difference, but getting it done by the pro's costs a bit but is sposed to yield good results, especially on a 100k mile car!
    Some places will do the lot for you, or some prefer removal and supplying them with the injectors alone.
    Instead of spending money on things like N75's for a 1.8T I would be interested to see what this would do to the car. If I back-track and keep mine, I will get this done.
    #5
  6. Beerzo
    Offline

    Beerzo Masa'warty 3200... Talk To Me!

    Joined:
    Feb 10, 2006
    Messages:
    1,242
    Likes Received:
    0
    Yeah would be good to get the car rr'd before and after. TBH I think it would prob be good results. As parts get worn after a good millage. Mines just passed 80K so just getting some niggles sorted before I start on the engine.
    #6
  7. JayB5UK
    Offline

    JayB5UK Member

    Joined:
    Jan 13, 2006
    Messages:
    470
    Likes Received:
    0
    Exactly, good to get them done, reset the ECU and let it settle, prob costs less than a new back box and better for the engine and restore some of the missing power.
    #7
  8. Beerzo
    Offline

    Beerzo Masa'warty 3200... Talk To Me!

    Joined:
    Feb 10, 2006
    Messages:
    1,242
    Likes Received:
    0
    Much would a new set of injectors cost?
    #8
  9. JayB5UK
    Offline

    JayB5UK Member

    Joined:
    Jan 13, 2006
    Messages:
    470
    Likes Received:
    0
    think about a ton + each normally! deffo cheaper to clean them!
    #9
  10. shineydave
    Offline

    shineydave Member

    Joined:
    Jan 1, 2006
    Messages:
    916
    Likes Received:
    3
    Maplins sell an ultrasonic bath for about 40 quid, ideal for this sort of job, Bargain
    #10
  11. scrupes
    Offline

    scrupes bloody great extension bodger

    Joined:
    Jul 18, 2004
    Messages:
    236
    Likes Received:
    0
    OOh I like that idea! you sure it would be ok for injectors and the like? seen as the cleaner uses water and the inj's are an electronic component?
    #11
  12. shineydave
    Offline

    shineydave Member

    Joined:
    Jan 1, 2006
    Messages:
    916
    Likes Received:
    3
    that's exactly how the pro's do it, the electrics on the injectors are sealed anyway so no issues there, what you're cleaning is the nozzle.

    trust me, it'll work fine
    #12
  13. billybravo
    Offline

    billybravo MODERATOR

    Joined:
    Feb 6, 2005
    Messages:
    1,047
    Likes Received:
    0
    yup the injectors arnt cheap i had to buy one last year and i couldnt find a second hand one anywhere i think mine was about 110 from a motorfactors as audi wanted a whole lot more plus a week shipping i had to wait 3 days for it in the end :(
    #13
  14. shineydave
    Offline

    shineydave Member

    Joined:
    Jan 1, 2006
    Messages:
    916
    Likes Received:
    3
    top tip. buy some new seals before you pull them out. more than likely they'll be shot. you'll probably get a bigger improvement by curing the air leak than cleaning the injectors
    #14
  15. hiltoa
    Offline

    hiltoa VAG erfahren

    Joined:
    Jul 20, 2006
    Messages:
    298
    Likes Received:
    0
    I had the injectors cleaned on my old VR6 (6 new injectors not an option @ £100+ each!), got a before and after flow analysis, car ran much smoother and lost a big flat spot to boot. Cost just over a ton for all 6.
    Perfect prep for the following MRC remap!
    Will be following the same process with the B5 once my lambda and boost gauges are wired up.
    #15
  16. scrupes
    Offline

    scrupes bloody great extension bodger

    Joined:
    Jul 18, 2004
    Messages:
    236
    Likes Received:
    0
    I think I'll have to give that a try, I've always had a flatspot (almost a missfire) at around 2500 rpm so maybe it'll eradicate that?

    Dave: where do you get the new seals? obv. apart from the dealers

    Anyone know how to remove the injectors properly? I would think my crowbar is a no-no! ie. screw out /off or pull out?

    sorry peeps I'm not up on modern mechanics, i used to pee about with old fords and minis, but i never messed much with me quattro, always had a fear of breaking it!

    I bought a haynes manual to read up on a few things. did it have the quattro system.... no! the v6 engines?...again NO!! bloody waste of £15 that was!
    #16
  17. shineydave
    Offline

    shineydave Member

    Joined:
    Jan 1, 2006
    Messages:
    916
    Likes Received:
    3
    i got mine from andrew pages so i'd guess most parts factors would have them. AFAIK they're just viton "O" rings so places like BSL Bramah should be able to get them. after searching the parts lists it looks like most cars (4 and 6 cylinder) use the same one, 7.52 x 3.53mm, you need two per injector
    #17
  18. scrupes
    Offline

    scrupes bloody great extension bodger

    Joined:
    Jul 18, 2004
    Messages:
    236
    Likes Received:
    0
    Cheers Dave:thumbsup: I'll pick me some of them up!
    OFF TO MAPLINS!!!!!
    #18
  19. goon
    Offline

    goon Member

    Joined:
    Jul 31, 2006
    Messages:
    323
    Likes Received:
    1
    took the injectors out of my 1.8t,easy job 20mins,took them to the lab in work into sonic bath for 2 hours,very little change in solution colour,so no real muck in there,no difference in performance-112000 miles.
    #19
  20. Turbo Lag FTW
    Offline

    Turbo Lag FTW Hate those none insured you know who types

    Joined:
    Feb 26, 2007
    Messages:
    235
    Likes Received:
    0
    Completely Useless and if you read your Audi manual it warns you not to use any cleaning products in your fuel, it also warns you to try and use fuel that has minimum cleaning additives.

    Before I got my moms A4 1.8T S her b/f used a cleaning additive and the car ran real sluggish for over a month until tank was free of it.
    #20
  21. marmite
    Offline

    marmite Counting the Tesco Club points

    Joined:
    Jul 20, 2006
    Messages:
    1,101
    Likes Received:
    0
    Really Audi actualy sell there own Approved product to use, this was recommend and sold by the dealers for years

    So no V power, or Super Plus then as they have cleaning products in them!


    I have used injector cleaner for years and recommend it to people who do very small trips when they have running issue and the cleaner 9 out of 10 times works and dose the trick.

    TVR Centre ran 2 identical demos years ago one with cleaner and one with out the results were amazing, the head on the with the cleaner was perfect when the other head was being to coke up around the valves.
    #21
  22. JayB5UK
    Offline

    JayB5UK Member

    Joined:
    Jan 13, 2006
    Messages:
    470
    Likes Received:
    0

    I agree, have used it in mine a while back and just got hold of the VAG stuff which i'm going to stick through at the weekend. Not sure if i'm a victim of Tesco or not, but mine is feeling a bit slow at the mo on their 99RON.
    #22
  23. Soupie69uk
    Offline

    Soupie69uk Owner

    Joined:
    Mar 10, 2004
    Messages:
    2,786
    Likes Received:
    6
    So you recommend the VAG stuff Marmite? Or would using V power just be fine?

    You used it on your RS6 and noticed a difference?
    #23
  24. smitch
    Offline

    smitch Active Member

    Joined:
    Sep 15, 2006
    Messages:
    1,588
    Likes Received:
    0
    I used some stuff called greased lightning (**** name i know) before and found it to be pretty good.

    Got it off the net.
    #24
  25. marmite
    Offline

    marmite Counting the Tesco Club points

    Joined:
    Jul 20, 2006
    Messages:
    1,101
    Likes Received:
    0

    The VAG stuff is good and from memory they also use Wurth stuff, speak to your local dealer!
    I run STP stuff red bottle from memory too

    I use 99 Tesco's Fuel and the RS loves it, I did 3 tanks of V Power and she went the same to be 100% honest

    For some reason my mrs filled it up...never normaly happens she dosn't even fill her own car up..but she filled it with some Total budget 10p litre **** 80 Octane stuff....I noticed that **** running through my car!!!
    #25

Share This Page