Injector cleaning

[944cabby]

I was in a local motor factors last week looking at various petrol injector cleaners - slick50 etc,etc.Does anyone use these cleaners regularly and if so is there really any noticable benefit?
Is there any length of time that injectors should go before being cleaned/changed or are they likely to last as long as the car.
Any thoughts?

 

[ross255]

Unless you actually have a problem with the injectors, then they need to be taken off the car and taken to a proper cleaners.

Otherwise, the cleansers in petrol will keep them clean. Theres no need to add it to fuel.

 

[Diver944]

I tend to agree with Ross. If you're using good quality modern petrol (like Ultimate or Optimax) they will clean them for you. I had my injectors removed and cleaned at about 120k miles six years ago for £30 each and it made a world of difference. Before cleaning they were squirting rather than spraying the fuel [] I stopped using supermarkets and cheapo petrol stations after that.

 

[stevep2000]

Porscheshop offer it as a service, see -

http://www.porscheshop.co.uk/acatalog/Mechanical___Rebuild_Services__Porsche_944.html

although worryingly shows a price of £645 for S2 injectors! Must be an error, as they seem to sell them for £78!

http://www.porscheshop.co.uk/acatalog/porsche_944_fuel_injection.html

 

[Fen]

I'd have thought any Bosch agent (or at least Bosch car engine agent) could do it. I know the local one in Exeter was completely geared up to deal with my BMW's diesel injectors.

 

[Hilux]

V good Bosch agent in Luton.

DH Auto Services (Dave Harwood) 01582 579494

 

[Diver944]

I had mine done at JZ-Machtech a few years ago at 100k miles and it was definitely worth it. As you're in Oxon if you wanted to stick with a Porsche specialist then you could always try Autofarm or RPM, I would imagine they have the kit.

 

[Peter Empson]

JZ Machtech did mine, but I can't remember off the top of my head what the price was i'm afraid, but it didn't seem particluarly expensive at the time.

Best regards,
Peter

<edited to add: Paul beat me to it! [] []>

 

[Jonny944CS]

Thanks for the info guy's.
Much appreciated.
I'll try Autofarm first as they are only down the road!!

 

[Neil Haughey]

I would have thought any decent Bosch tuning/fuel injection centre would have the right equipment. ISTR the best system is called ASNU, I remember reading an article a couple of years back that said pretty much to look for a garage with the ASNU setup.

Something I can defo recommend is the Forte gas treatment. I had one put in the tank when I was down at Jon Mitchells about 18 months ago. I believe Camskill is selling the Forte stuff, I may order a few bottles and the engine flush because its supposed to be as effective as the Wurth flush but not so agressive. I need a good flush in the daily driver.

You can also try cleaning injectors yourself but IMHE it don't really work unless you can get a current on the injector to switch it open and shut.

 

[rcsalmons]

I think unless you check flow rates and speray pattern your wasting your time

Rich

 

[Diver944]

I had mine done on an ASNU several years ago to cure a running fault and it did make a difference and cost around £100 for all four. However if I was considering mild tuning I think I would just spend around £200 and get a new set of uprated ones like 55lbhr.

Do your MAXHP chips have a setting for bigger injectors?

(sorry that was at JZMachtech so not exactly midlands local)

 

[stevep2000]

Have been thinking about getting mine done also, and came across these guys who have an ASNU setup - they do a postal service which may be ok if you can get by with the car off the road for a week or two. Can't vouch though as I haven't sent mine of as yet;

http://www.injectorcleaning.co.uk/

 

[rcsalmons]

I know what you mean about new injectors but £200 is a lot of money at the moment.

At the other end of the scale I found this chap today Link

Rich

 

[Peter Empson]

Blimey, that ebay one is cheap...

I had a set cleaned by SimonP (SPS) a while back so it might be worth dropping him a line if you want them done by a known expert.

 

[Diver944]

ORIGINAL: rcsalmons


At the other end of the scale I found this chap today Link

Worryingly the same guy also sells this [&:]

http://cgi.ebay.co.uk/eBayISAPI.dll?ViewItem&item=160221898553

Lindsey sells a set of 4 injectors that haven't been flowmatched for $290 US (which would be like buying a set of injectors off the shelf for a normal car)

 

[aprotogerellis]

So, did anyone end up using these guys: http://www.injectorcleaning.co.uk/

Any opinions/comments/rants/raves?

 

[Neil Haughey]

I think some of the guys on 968uk have used them, I remember seeing them in a similar thread over there. I will probably give them a try some time.

 

[Big Dave]

ORIGINAL: aprotogerellis

So, did anyone end up using these guys: http://www.injectorcleaning.co.uk/

Any opinions/comments/rants/raves?

Yes ive used them with GREAT results...
I sent off 8 injectors , 2 car sets.. They did them + sent them back all within 3 days. I got a FULL flow chart of before + after cleaning....+ an improved car once fitted....
VERY highly recomended.....[][][][][]