All Things Mk5 > How to Guides / Troubleshooting
Couple of issues
csrigo:
--- Quote from: Dan_FR on September 26, 2018, 08:20:10 am ---BG44K won't fix the injector, they need removing, flow testing and proper cleaning, if they can be salvaged at all. If its bad enough to cause a persist ant misfire then get them done sooner rather than later
Your standard injectors are fine for a TTE420 - only need a FPRV to up the fuel pressure as the 136Bar item you have now won't be enough, and no you cannot run different injectors without a suitable map, which you won't get from APR
--- End quote ---
Cheers mate, I'm getting a price from vw this morning on an injector...hate just changing one tho because you know another will go soon after and thats the inlet off again etc...pricey for all 4 right enough would rather not need to obviously..think I will get one injector and run that bg44k through the originals before I change it over for the sake of £20 unless it's detrimental in some way not really looked into it yet.
Yeah I thought you would prob need to map round it just curious if the ecu or software was enough to compensate on these...anybody know what block on vcds I can check the injectors on...scrolled through but may have missed it?
Cheers
scopes:
Best of pulling your injectors out and sending them all for testing and re-sealing, this option would still be cheaper than a new injector... :happy2:
Then you have peace of mind all 4 are good for another load of miles... :driver:
Dan_FR:
You can't log for or test for an injector imbalance. You'll get some short term fuel trim adaption going on but that could also be caused by a multitude of things.
Get all 4 out and sent off for testing, cleaning and balancing. It's around the £125 mark if I remember rightly - R-Tech offer this service and fit/provide new seals. Worth getting all 4 tested though without a doubt
csrigo:
--- Quote from: Dan_FR on September 26, 2018, 01:13:06 pm ---You can't log for or test for an injector imbalance. You'll get some short term fuel trim adaption going on but that could also be caused by a multitude of things.
Get all 4 out and sent off for testing, cleaning and balancing. It's around the £125 mark if I remember rightly - R-Tech offer this service and fit/provide new seals. Worth getting all 4 tested though without a doubt
--- End quote ---
Cheers lads, didn't know r-tech done that I will be phoning tomorrow to find out sounds like what I'm after, much better option.
Hmm wld have been good to have something on vcds that points to the injector for confirmation but at approx £125 to do all 4 when the inlets off anyway sounds ideal.
Doing my compression test tomorrow so I will see what that turns up as well for my other issue.
Cheers again good suggestions never thought about getting them reconned.
pudding:
For reference, I compression tested mine last summer and saw 14 bar across all 4, it's done 125K miles. 14-15 bar is the spec for a new engine, so I was very surprised by that. Maybe the previous owner blew it up and put a new motor in :grin:
I hate to say it mate, but oil fouling in just one cylinder isn't a good sign. Let's hope you see some encouraging numbers from your compression test. Try it hot and cold and see what the difference is. It's probably wise to pull the fuel pump fuses and crank it for 10 seconds per cylinder with the throttle fully open.
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